# Questions Asked onNovember 28, 2012

1. ## physics

A weightlifter has a basal metabolic rate of 80.0 W. As he is working out, his metabolic rate increases by about 650 W. (a) How many hours does it take him to work off a 450-Calorie bagel if he stays in bed all day? (b) How long does it take him if he’s

2. ## college algebra

Use properties of logarithms to condense the logarithmic expression. Wreite the expression as a simple logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions. Inx + In 15 Please show work

3. ## calculus

Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. (Round your answer to four significant digits.) HINT [See Quick Example

4. ## calculus

Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. (Round your answer to four significant digits.) HINT [See Quick Example

solve the following equation 9^x-1 = 144(6x) please show work.

6. ## calculus

If w = , find ||w||.

7. ## calculus

If z = 2cis 60°, find z^4 in rectangular form.

8. ## English

1. Do you have some brothers? 2. Do you have any brothers? (Which one is grammatical? Are both OK?)

9. ## Math

Cody has a circular fish pond with a diameter of 6.4 feet around which he wants to put a sidewalk. He has enough concrete left over to cover an area of 65 square feet. Assuming the sidewalk is of uniform width, how wide can the sidewalk around the pond be?

10. ## calculus

y1= sin (x) y2= (tanx) It is graphed in the interval [0, pi/2] find the integral

11. ## chem

Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may

asked by sabrina: This is how the question is written.
12. ## CHEMISTRY

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (a) Write a balanced chemical equation for the neutralization

13. ## investment

Mr. Centeno invested P50,000, part of which at 5%per year and the rest at 6% per year. His annual income from the 2 investments was P2,000. How much did he investat each rate?

asked by HELP HELP MNHS
14. ## Science

A boat is sailing 42 km/hr upstream on a river that is moving at 16 km/hr downstream. What is the velocity of the sailboat.....can you show me the formula too...not understanding this

15. ## elementary

this ecosystem is very hot and very dry with little or no rain. desert grassland rain forest forest how guess the answer can u explain me

16. ## CHEMISTRY

A volume of 100ml of h20 is initially at room temperature (22.0c). A chilled steel rod at 2.00C is placed in the water. If the final temperature of the system is 21.2C , what is the mass of the steel bar?

17. ## investment

A certain amount of money is invested at 6% per year. A second amount is P5000 larger than the first is invested at 8% per year. The interest from the investment at the higher rate exceeds the income from the lower investment by P500. Find the investment

asked by HELP HELP MNHS
18. ## investment

A certain amount of money is invested at 6% per year. A second amount is P5000 larger than the first is invested at 8% per year. The interest from the investment at the higher rate exceeds the income from the lower investment by P500. Find the investment

asked by HELP HELP MNHS
19. ## CHEMISTRY

1. Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may

20. ## CHEMISTRY

The half-cell, Tl | Tl+(1 mol L-1), is connected to a Pt | H+ | H2(1 atm) half-cell in which the concentration of H+ is unknown. The measured cell voltage is 0.0841 V and the Pt | H2 | H+ half-cell is the cathode. Standard reduction potentials are given on

asked by sabrina: Anyone know how to answer this?
21. ## CHEMISTRY

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (a) Write a balanced chemical equation for the neutralization

asked by sabrina: I am having difficulties with this!
22. ## physics

A cart of mass 1.4 kg is attached to a horizontal spring with stiﬀness 44.4545 N/m and is able to move horizontally without friction. The cart is then acted on by a sinusoidal driving force with ω = 4.9 Hz and an amplitude of 1.74532 N. What is the

23. ## Algebra

1) A corner lot that originally was square lost 185m^2 of area when one of the adjacent streets was widened by 3 m and the other was widened by 5 m. Find the new dimensions of the lot. (Hint: Let x = the lenght of a side of the original square lot. ) 2) A

24. ## Physics

Which requires more energy: to raise 1 kg of liquid water from 0 to 100 degrees (Celsius) or to turn that water to steam after it hits 100 degrees? Assume the specific heat capacity of water is approximately independent of temperature.

25. ## Stats

Many colleges and universities hold a “blood drive” for organizations such as the Red Cross. To help with the planning of an upcoming blood drive, we want to estimate the proportion, p, of students and faculty who would be willing to donate a pint of

26. ## English

1. You are lucky that you have such a nice grandfather. 2. You are lucky because you have such a nice grandfather. 3. You are lucky to have such a nice grandfather. (Are they all the same and grammatical?)

27. ## Stats

The Ledd Pipe Company has received a large shipment of pipes, and a quality control inspector wishes to estimate the average diameter of these pipes. A random sample of 18 pipes produces an average diameter of 2.56 mm with a standard deviation of 0.05 mm.

28. ## preparing for an elocution

I have an elocution theme "united we stand divided we fall" can any one help me for preparing this?

29. ## Engish

I would like to know about some gestures. 1. If somebody puts his spread right hand on his belly, what does this gesture mean? 2. If a person puts his thumb up, what does this gesture mean? 3.If a person makes a circle with a thumb and the index finger,

30. ## physics

3 points particles with masses 4kg,2kg,3kg are at the corners of equilateral triangle of side m =2m.

31. ## trigonometry

an isosceles triangle is inscribe in aradius 100 in .find the angles of the triangle if it is base subtends an arc of 143.7 in

32. ## English

In the old days, people thought that their souls left their bodies when they sneezed. They were worried that their souls might not get back into their bodies safely. So they said "Bless you" to pray for the safe return of the soul. No one believes it

33. ## Mathis

Guy placing boaters around the room. The room is 18 by 9 feet. How many tiles did he use to cover the floor

34. ## chemistry

15.00 ml of NaOH is obtained in an Erlenmeyer flask. Before titrating with .2500 M HCl, the initial volume of acid in a buret is read as 2.08 ml. At the endpoint the final volume of acid in the buret is 25.20 ml. What was the concentration of NaOH?

35. ## Phy

A 17kg child slides down a 2.7m -high playground slide. She starts from rest, and her speed at the bottom is 1.8 m/s. What is the change in the thermal energy of the slide and the seat of her pants?

A car is traveling at 10 m/s. By what factor does the car's kinetic energy increase if its speed is doubled to 20 m/s?

Part A: A cardinal (Richmondena cardinalis) of mass 4.50×10^−2 kg and a baseball of mass 0.142 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude p(c) of momentum to the magnitude p(b) of the baseball's momentum? Part B: A

38. ## math

aileen's brother is twice as old as her. Ten years from now, her brother will be 13 years older than her. what is aileen's age?

asked by alliah coleen malonzo
39. ## English

1. My parents want me to grow healthy. 2. My parents want me to become healthy. 3. My parents want me to grow healthily. (Does #1 mean #2? Does 'grow' mean 'become'? What about #3? Is #3 grammatical?))

40. ## English-Native speakers

Need help with one sentence structure. I don't know if I am going to be able to explain it good. It goes like this "the measures will have to be much more drastic than if they were conducted today" I need help with this part "than if they were conducted

41. ## statistik

twenty percent of the employees of a large company are female.use the normal approximation of the binomial probabilities to answer the following question. what is the probability that in a random sample of 80 employeses a)exactly 16 will be female? b)14 or

42. ## chem

How many pH units change are usually required for an indicator to undergo a color change?

43. ## chem

What relationship exists between H^+ ion concentration and OH^- ion concentration? Waht is the OH^- concentration of an aqueous solution with the H^+ concentration of 10^-4M. Calculate the pOH? Need help with this pls. thank you.

44. ## statistik

the average starting salary of this yaer's graduates of a large university (LU)is \$25000 with a standard deviation of \$5000.futhermore,it is known that the starting salaries are normally distributed. a)what is the probability that a randomly selected LU

45. ## physics

i cant solve this problem i need for help please through how many does a point on the earth's surface move in 6h as a result of the earth's rotation ? what is the speed of a point on the equator ? take the radian of the earth to be 6370 km thank you

asked by need for help
46. ## physics

i cant solve this problem i need for help please through how many does a point on the earth's surface move in 6h as a result of the earth's rotation ? what is the speed of a point on the equator ? take the radian of the earth to be 6370 km thank you

asked by need for help
47. ## CHEMISTRY

The half-cell, Tl | Tl+(1 mol L-1), is connected to a Pt | H+ | H2(1 atm) half-cell in which the concentration of H+ is unknown. The measured cell voltage is 0.0841 V and the Pt | H2 | H+ half-cell is the cathode. Standard reduction potentials are given on

48. ## CHEMISTRY

1. Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may

asked by sabrina: who can help?
49. ## science

0.042g of Magnesium was reacted with excess HCl at S.T.P. A. Write the equation for the reaction B. How many moles of Mg were used? C. What volume of Hydrogen is produced in this reaction?_

50. ## chem101

If a solution contains 0.0100 mole of HCl in 10.0 mL aqueous solution. a.) What is its molarity? My answer is 1M (0.0100 mole/10.0 mL * 1000 mL/1L = 1M) b.) What is H^+ ion concentration for this solution? c.) What is the expected pH for this solution? pls

51. ## university physics

A bat flying toward a wall at a speed of 6.47 m/s emits an ultrasound wave with a frequency of 27.5 kHz. What frequency does the reflected wave have when it reaches the flying bat? (Assume that the speed of sound is v = 341 m/s.)

52. ## math

y1= sin (x) y2= (tanx) It is graphed in the interval [0, pi/2] find the integral

53. ## science

unscramble pergorsaph to make a six legged animal

54. ## Math

Mr. Logan purchased \$390 in clothing (excluding sales tax). He bought 5 identical shirts, 3 identical pairs of pants and 2 identical pairs of shoes. Each pair of shoes cost twice the combined value of one shirt and a pair of pants. Each pair of pants cost

55. ## Math

1. You have 3500 in savings for 9 months at a rate of 4.5%. How much will you have at the end of that time? Ans. my book says: 3,618.13 I come up with: 118,125 2. Scale reads 1 inch = 24 inches for a house window. If window measures 1 3/4 inches, what is

56. ## Shasha

What is the exact value of sin(2 theta) if cos (theta)=3/5 and (theta) is in quadrent 4? 12/25 24/25 -12/25 -7/25 -24/25

asked by Help STEVE!
57. ## chem

1.Can a solution ever have a pH=0? 2.What does pH = 0 suggest about the concentration of the acid? 3.Can the pH ever be negative? 4.What is the significance of a negative pH in a solution? pls need help we didn't cover this in lecture yet.

58. ## Math

The coordinates of the end-points of a line segment PQ are P(3,7) and Q(11,-6). Find the coordinates of the point R on the y-axis such that PR = QR. Please include the workings, as I would like to be able to perform these problems unassisted in the future

59. ## chemistry

what is the pH of a 0.10 M solution of methylamine (CH3NH2, kb= 4.4*10^-4) at 25 degree C?

60. ## chemistry

what is the pH of a 0.10 M solution of methylamine (CH3NH2, kb= 4.4*10^-4) at 25 degree C?

61. ## history

Do you think that the Korean War was merely a civil war in which the United States supported one side, or should it be considered an international war in which the United States used the United Nations to further its anticommunist policies?

62. ## Calculus (help Steve plz)

1) if w = , find ||w||? 2) which expression is equivalent to (sin x+1) (sin x -1)? A. Cos^2x B. -cos^2x C. Cos^2x+1 D. Cos^2x-1 E. -cos^2x-1

63. ## Math word problem

Jason travels from A for 5 km north and then 7 km due west to B, he then travels bak directly from B to A. Find the total length of his journey

64. ## math

find the average return over the last ten years on a mutual fund . what investment account of 1,000 for 5,10,15,20,25,30,35 and 40 years compound quaretly. is there a point at which the investment appears to grow more quickly

65. ## physics

a clothes washer starts from rest and spins up with an angular accceleration of 10/rad/s^2. Determine the angle through which the washer has moved afer 6 seconds.

66. ## Calculus

Convert theta=225degrees A y=-1 B y=1 C y=x D y=-x E x=-1

67. ## Proofs and numbers

Compute empty(24). For each element of Z(intergers)=24 decide whether the element is a unit or a zero divisor. If the element is a unit, give its order and find its inverse.

68. ## Proofs and numbers

Use Fermat's Little Theorem to find the remainder on division of 5120 by 19.

69. ## Math

A floor is 45 inches by 30 iinches. what is the largest square tile you could use to cover the floor?

70. ## Proofs and numbers

Imagine you are an old Chinese scholar teaching Proof and Numbersto Chinese princes. When you group your pupils in rows of five, two are left over. If you group them in eights, only one is left over. So you try it with rows of nine, but now you are left

71. ## painting

a gallon of paint will cover about 350 square feet of space. You are painting 3 halls of a school. Ignoring the doors, the halls are 10 feet tall and 125 feet long. You buy 11 gallons of paint. Did you buy enough of paint?

72. ## Math

Find the length of the longest steel rod which could fit into a cardboard carton of dimensions 1.2 m by o.8 m by o.6 m. Please show your workk :)

73. ## Proofs and numbers

Solve the congruence 24x identical to 42 (mod 30) for x. List all the solutions (if there are any).

74. ## Proofs and numbers

Use Fermat's Little Theorem to find the remainder on division 5^120 by 19.

75. ## Proofs and numbers

Prove the following theorem: Suppose p is a prime number, r, s are positive integers and x is an arbitrary integer. Then we have x^r identical to x^s (mod p) whenever r is identical to s (mod 11).for x belongs to an integer

76. ## physics

A spring of negligible mass stretches 2.20 cm from its relaxed length when a force of 10.50 N is applied. A 1.100 kg particle rests on a frictionless horizontal surface and is attached to the free end of the spring. The particle is displaced from the

77. ## Calculus

Which is the correct cofunction identity for (tan theta?) A csc(90degrees - theta) B sec (90degrees - theta) C sin (90degrees - theta) D cos (90degrees - theta) E cot (90degrees - theta)

78. ## science

can you unscramble the following letters to name a six legged animal pergorsaph

79. ## Simplify

Simplify expression tan(-x)csc(x) ??? Cos x -cos x Sin x Sec x -sec x

80. ## physics

You need to siphon water from a clogged sink. The sink has an area of 0.484 m2 and is filled to a height of h = 3.99 cm. Your siphon tube rises h1 = 40.6 cm above the bottom of the sink and then descends h2 = 103 cm to a pail as seen in the figure below.

asked by ken Lopez
81. ## Plzzzzz help urgent math

A 4.5 m long pipe rests against a 2 m high tank, one end of the pipe is on the ground 3 m from the base of the tank. How much of the pipe overhangs the tank?

82. ## English

Hello. I'll be grateful for your help. Which word is it better to use to complete the following sentence: "Only two people died in the fire but there were a lot of 1)victims; 2)casualties"? The two words look like synonyms to me(I consulted a dictionary),

83. ## chemistry

Vanadium oxide is used as an industrial catalyst. The percent composition of this oxide is 56.0% vanadium and 44.0% oxygen. Determine the empirical formula for vanadium.

84. ## chemistry

Naphthalene, commonly known as moth balls, is composed of 93.7% carbon and 6.3% hydrogen. determine the empirical for naphthalene. molecular formula for Naphthalene. Determine the number of empirical formulas you would need to make a full naphthalene

85. ## Help ASAP calculus

Which is the 7th term in the sequence of the squares of all odd numbers starting from 1? 144 169 196 200 225

86. ## Steve help!

10,000 students took a math test. If there average score was 40 with standard deviation of 10, how many students must have scored between 20 and 40 marks? 3,772 2,227 5,000 3,334 4,772

87. ## programming

Using Raptor, create a condition loop that will ask the user for input of two numbers. The numbers should be added and the sum displayed. The loop should also ask the user if he or she wishes to enter two more numbers and perform the operation again, the

88. ## Probability

4 fair coins are tossed. What is the probability that all the outcomes are heads?

89. ## Steve pre calc

What is the right hand limit of f(x)= |x-9|/x-6 as x approaches 7? I think it's 1.

90. ## Confused calculus

Pete invests \$10,000 in a certificate of deposits that earns 3% interest , compounded yearly. What will be te compound income at the end of 5 years?

91. ## Chemistry

What is the chemical breakdown of a cheese pizza

92. ## Calculus

What is the sum of all the odd #s between 100 & 200??

93. ## math

at the bowling alley Angela rented shoes for \$3.00. It cost her \$2.50 to bowl each game. develop an equation using the form C(x)=mx+b, where C(x) is the total cost and x is the number of games bowled.

94. ## Probabilty

Biased coin has a 0.4 probability of landing on tails. The random variable x, based on a single toss of the coin, is defined as follows: x=0 if heads appears; x=1 if tails appears. What Is the mean value of X? Is it . 0.3 .4 .6 .5 .7

95. ## physics

A technician wishes to produce the lens +2.00DS/+2.00DC x90 in toric form, in CR39 (n=1.498) with a -5.00 base curve. After finishing the toroidal surface with the CR39 tool it is discovered that, in error, they have used a plastics material of refractive

96. ## Math - Algebra

The length of the hypotenuse of a right triangle is 13 cm. The length of one leg is 5 cm. Find the length of the other leg.

asked by Elleighette B.
97. ## Pre-Cal

Angles of elevation to an airplane are measured from the top and the base of a building that is 40 m tall. The angle from the top of the building is 37°, and the angle from the base of the building is 40°. Find the altitude of the airplane. (Round your

98. ## math

Please explain the order of operations for the formula 30 divided by 5 times 6 Do I do the multiplication first, or do I do the the operations from left to right?

99. ## Math

Tracy made a stained glass jewellery box. It measured 20cm by 12cm by 8cm. a) About how much glass did Tracy use? b) one piece of glass has an area of 100 cm squared and costs \$3.65. How much did the glass cost?(assume all pieces can be used Please help

100. ## Pre-Cal Trig

Two lookout towers are situated on mountain tops A and B, 4 mi from each other. A helicopter firefighting team is located in a valley at point C, 3 mi from A and 2 mi from B. Using the line between A and B as a reference, a lookout spots a fire at an angle

101. ## Chemistry

How many kilograms of chalcopyrite must be mined to obtain 315g of pure Cu?

102. ## BUS 610 Organizational Behavior

How does the Hawthorne study incorportate human resource functions?

103. ## Steveeee help plz

What is the area is square units o the region under the curve of the function f(x)=4, on the interveral from x=-1 to x=3

104. ## History

I am to write a short essay on the pros of making marijuana legal and than I need to debate the issue. Can you help with websites

105. ## Social Studies 8

3. The Democratic-Republicans believed in strong state governments and (1 point) rule by the wealthy class. a national bank. a strong federal government. rule by the people. I believe it is either A or B, but I am not sure. Help?

106. ## Math

The surface area of a cube is 150cm squared. The area of one face of the cube is 25cm squared. What is the length of one edge of the cube?

107. ## Chemistry

If 22.15 milliliters of 0.100 molarity sulfuric acid is required to neutralize 10.0 milliliters of lithium hydroxide solution, what is the molar concentration of the base?

108. ## psychology

Can you give examples perhaps in a work setting or even in society on contrasting differences between a dominat culture and subclulture?

109. ## Lang Arts

2. In “Cream Puff,” Jen is a dynamic character because she shows her active personality in the story. is the main character of the story. stays the same during the course of the story. changes during the course of the story. 3. Jen resolves her

110. ## chemistry

calculate the amount (g) needed to make 25 ml of 0.1 m co(no3)2 6h2o

111. ## earth

Hello.. Which four gases did the earth`s atmosphere coantain in the first billion years?

112. ## Steve math help.

What is the limit of f(x) = 4x^2 -6/ 4x^2 as x approaches infinity

113. ## biostatistic

can we use t-test for two independent sample and dichotomus study with less than five success or failures?

114. ## history

6. At the Yalta Conference of 1945, the military situation favored A. Churchill. B. Eisenhower. C. Stalin. D. Roosevelt. i think is c

115. ## Physics 1

A catapult 100 m long launches a 3.0 x 10^4 kg jet from the deck of a carrier. Starting at rest, the plane takes off with a speed of 80 m/s. Find: a)The acceleration, b) the average force, c) the work done, d) time to accelerate , e) the power developed.

116. ## algebra

Completely factor the following expression. 1.4x^2-8x-12+6x

117. ## Physics

A girl of 50 kg slides down a 8 m long slide into a pool. The upper end of the slide is 4.0 m above the water and the lower end of the slide is at the level of the water. Assume a coefficient of friction of 0.20, find: a) the potential energy of the girl

118. ## physics

A 2 kg mass falls 40 m and buries itself into the ground 0.40 m. Find: a) How much work was done by gravity, b) How much potential energy was lost, and c) What was its speed when it hit the ground, and d) the average force causing the mass to stop once it

119. ## Math

The demand function for a certain brand of CD is given by the following equation where p is the wholesale unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. P=-0.01X^2-0.1X+6 Determine the consumers' surplus if

A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? Please help!!!! a)39 m2 b)169 m2 c)117 m2 d)142 m2

asked by April :)
121. ## geometry

A painter leans a 20-ft ladder against a building. The base of the ladder is 12 ft from the building. To the nearest foot, how high on the building does the ladder reach?

122. ## physics

An archer shoots an arrow toward a 300 g target that is sliding in her direction at a speed of 2.45 m/s on a smooth, slippery surface. The 22.5 g arrow is shot with a speed of 40.5 m/s and passes through the target, which is stopped by the impact. What is

123. ## trig

given that 0 is less then or equal to theta and theta is less then or equal to pi. ans cos theta = 2/squar root of 7. Find sin theta

124. ## Math

1. What is the area of triangle ABC if a = 47.0°, β = 57.8°, and a = 10.2 cm? A. 58.2 cm2 B. 43.5 cm2 C. 38.4 cm2 D. 33.3 cm2 2. Given triangle ABC with β = 41°, g = 14°, and a = 5.0, find the value of c. A. 6.2 B. 4.0 C. 1.5 D. 17 3. Resolve the

125. ## Finance

Stephenson Real Estate Capitalization

126. ## Calculus

Evaluate, in spherical coordinates, the triple integral of f(rho,theta,phi)=cos (phi) , over the region 3

127. ## Chemistry

In a constant-pressure calorimeter, 50.0 mL of 0.320 M Ba(OH)2 was added to 50.0 mL of 0.640 M HCl. The reaction caused the temperature of the solution to rise from 23.47 °C to 27.83 °C. If the solution has the same density and specific heat as water,

128. ## chemistry

At constant volume, the heat of combustion of a particular compound is –3334.0 kJ/mol. When 1.569 g of this compound (molar mass = 125.76 g/mol) was burned in a bomb calorimeter, the temperature of the calorimeter (including its contents) rose by 5.173

129. ## trigonometry

2. Choose the point that lies on the curve r = 2 – 3 sin θ. A. (-5, 3π/2) B. (–2, π) C. (1, π/2) D. (5, π/2 3. Which of the following is not an approximate solution of x5 – 1 = 0? A. 0.3090 – 0.9511i B. 0.8090 + 0.5878i C. 0.3090 + 0.9511i D.

130. ## Algebra

Find the axis of symmetry for y=x^2+4x-7 Find the axis of symmetry for y=3x^2-18x+1 Find the axis of symmetry for y=5x^2+10+3 Determine if the vertex is a maximum or minimum and identify it y=2x^2-3 Determine etc etc for y=-x^2-2x Determine etc etc for

131. ## Chemistry

What is the final volume (L) of a 1.00 L system at 315 K and 1.10 atm if STP conditions are established?

132. ## physics

The torques acting on the crane boom can be computed about anaxis passing through the top of the boom. (this is the place wherethe spring scale and mass hanger connect to the boom) apply thesecond condition for equilibrium to the crane boom and derivethe

133. ## financial

2. A bank is considering an investment in a municipal security that offer a yield of 6 percent. What is the security’s tax equivalent yield if the bank’s tax rate is 35 percent

134. ## Physical science

A cross country runner runs 12km in 41 minutes. What is his average speed?

135. ## Jennifer

How to balance the following equation: I2 + Cl- = ?

136. ## algebra

Completely factor the following expression.1.) 5c^2-24cd-5d^2

137. ## algebra

Completely factor the following expression.1.) 5c^2-24cd-5d^2

138. ## math

what is 4 divided by 371

139. ## us history

Constitutional scholars have pointed out there is an inconsistency in Justice Marshall's opinion with respect to what the constitution specifically provides. What is the inconsistency?

140. ## Grammar

1.“Follow-up” or “followup” can be a noun or an adjective. A) True B) False I answered A 2. Select the 2 correctly punctuated sentences: A) His followup appointment is in 2 weeks. B) His follow up appointment is in 2 weeks. C) His follow-up

141. ## math 105

Need help with 8+(-17) calculate

142. ## Grammar

Sometimes the only way to tell if a possessive word is singular or plural is by the context of the sentence. A) True B) False Answer: A

143. ## math 105

Which is higher -40 Or-50

144. ## Business math/Finite

How long to the nearest year, will it take an investment to double if it is continuously compounded at 4% per year

145. ## sciene taking the G.E.D.

I study my science for The test but I am only score 39 what can I do to bring up my pooint I fell it twice.

146. ## Ethics & Justice Administration

If I am looking to support my pro capital punishment theories which of the following ethical theories would best support my stance? I must use two. Absolutism, ethical formalism, utilitarianism, hedonism-stoicism, natural law, ethics of virtue, ethics of

147. ## Question about APA citations

I'm typing a paper and I'm SO confused. My question is: Using APA stle, how do I write the PAGE NUMBERS at the end of the sentence. For example my sentence would be: The reason pigs can fly is because they have wings(Jones, 32)....THIS IS THE CORRECT WAY

148. ## math

Prove the identity cos theta - sin theta / cos theta + sin theta = sec 2 theta - tan 2 theta.

149. ## math

how can I write a word problem usingg 4.23*10=42.3

150. ## math

numbers that have a tens digit greater than 5. Please chose the numbers 44 75 21 16 93 67 88 82 6 90 77 34 92 42

151. ## math

what is the answer to 8,580 words in 2 h 45 min in unit rates for 7th grade

152. ## Chemistry

I am not sure if I calculated the exact molarity of the potassium permanganate. I multiplied the molarity of the potassium permanganate by the liters of potassium permanganate used in the titration and divided it by the total liters of solution. I don't

153. ## Math

I need help figuring out the unit rate for \$5/3. Please help, :D

154. ## English

What three words create assonance in the stanza: "One day a girl went walking And stepped into a store; She bought a pound of sausages Then set them on the floor."? Based on what assonance means and is used for... I'm guessing it's the words 'bought',

155. ## Precalc

1. 1/3log base 8 of (x+1)=2log base 8 of 3-(2/3)log base 8 of (x+1) 2. 2^x+8 times 2^=x all over 2 = 3 3. if log base a of 3= x and log base a of 2 = y, find each of thefollowing in terms of x and y log base a (18a^3) thanks!!

156. ## Chemistry

I am not sure if I calculated the exact molarity of the potassium permanganate. I multiplied the molarity of the potassium permanganate by the liters of potassium permanganate used in the titration and divided it by the total liters of solution. I don't

157. ## Algebra 8th grade.

The coordinates of quadrilateral VWXY are given below. Find the coordinates of its image after a dilation with the given scale factor. V(6, 2), W(–2, 4), X(–3, –2), Y(3, –5), scale factor of 2 Please help!!!!

asked by April :)
158. ## Math

Two cards are drawn in succession without replacement from a standard deck of 52 cards. What is the probability that the first card is a heart given that the second card is a diamond? (Round your answer to three decimal places.)

159. ## math

numbers that have a tens digit greater than 5. Please help me to chose the correct numbers out of this choices 44 75 21 16 93 67 88 82 6 90 77 34 92 42

160. ## algebra

Completely factor the following expressions. 1. 256z^2-4-192z^2+3 2. 2a^2c^3-14bc^3+32c^3d^2 3. 35g^2+6g-9 4. 3j^3-51j^2+210j

161. ## Algebra2

Help? Write an equation for the line in point/slope form and slope/intercept form that has the given condition. 4. Slope = 3/2 and passes through the origin. 5. x-intercept = 4 and y-intercept = -3

162. ## Business Research Management

How might you use different types of research (focus groups, observation, survey, and experiment) to forecast market reaction to a new kind of disposable baby diaper?

asked by Tava Mitchell
163. ## Algebra2

Can these get checked. Find the slope of the straight line that passes through the given points or state that the slope is undefined. Then indicate if the line through the points rises (left to right), falls (left to right), is horizontal, or is vertical.

164. ## earth space

What man made or natural features can interfere with the weather radar?

165. ## Physics

Part A: A cardinal (Richmondena cardinalis) of mass 4.50×10^−2 kg and a baseball of mass 0.142 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude p(c) of momentum to the magnitude p(b) of the baseball's momentum? Part B: A

166. ## Physics

A car is traveling at 10 m/s. By what factor does the car's kinetic energy increase if its speed is doubled to 20 m/s?

167. ## Physics

A 17kg child slides down a 2.7m -high playground slide. She starts from rest, and her speed at the bottom is 1.8 m/s. What is the change in the thermal energy of the slide and the seat of her pants?

168. ## algebra

To make pancakes, you need 2 cups of water for every 3 cups of flour. Write an equivalent ratio to find how much water you will need with 9 cups of flour.

169. ## math

i am less than 200 the sum of my digits is 18 i have 3 digits i am an even number what am i. HELP ME PLEASE THANK YOU ABBIGAIL

56-345

171. ## physics

A 75 particle is moving to the left at 29 . How much work must be done on the particle to cause it to move to the right at 46 ?

172. ## colors

what color is a pig and strawberry ice cream?

173. ## Work

A 75kg particle is moving to the left at 29m/s . How much work must be done on the particle to cause it to move to the right at 46m/s ?

174. ## Calculus

Find the maximum volume of a cylindrical tin that has a total surface area of 600pi cm^2.

176. ## Calculus

Find the derivative of y = x^x

177. ## accounting

if kennedy has net income of \$1,600 and then liquidates, what amount of cash will the creditors receive? what amount of cash will the investors receive?: .

178. ## principle of accounting

if kennedy has net income of \$1,600 and then liquidates, what amount of cash will the creditors receive? what amount of cash will the investors receive?:

179. ## statistics

. A certain researcher thinks that the proportion of women who say that female bosses are harshly critical is greater than the proportion of men. In a random sample of 200 women, 27% said that female bosses are harshly critical. In a random sample of 220

181. ## french

What does "Bienvenue conjoint, votre banane cre've les yeux." in french?

182. ## chem

For the following equilibrium system, which of the changes will form more CaCO3 (more moles CaCO3)? CO2 + Ca(OH)2=CaCO3 +H2O delta H =-113kJ Write and explain if amount CaCO3 decrease, no change or increase with regards to the following situations: a)

183. ## 4th Math

can u help me find the input and output?Input numbers are 3,5,9 and output numbers are 12,15,30,33 and how u got the answers

184. ## Grammar

You form the possessive of all singular words with apostrophe “s.” A) True B) False Answer is A

185. ## physics

A race car completes the final lap of a race on a 2-kilometer circular track. At the start of the lap, it crosses the line at 60 meters/second. It completes the lap 28.57 seconds later, crossing the line at 85 meters/second. Calculate the displacement and

asked by alejandra aguinaga
186. ## Grammar

Select the correctly punctuated sentence (both own the house): A) My mother and father’s house is painted gray. B) My mother’s and father house is painted gray. C) My mother’s and father's house is painted gray. D) My mother and father house is

187. ## Grammar

Select the correctly punctuated lab tests: A) cbc’s or CBCs B) cbcs or CBC’s C) cbc’s or CBC’s D) cbcs or CBCs I answered C

188. ## English

I am trying to decide if the infinitive phrase is used as a noun an adjective or an adverb. To have a balanced diet, keep the food triangle in mind. Is this an adverb that describes how to keep the food? What about this one? Fifty years ago, people didn't

189. ## Algebra2

problems 8 - 11: Give the slope and y-intercept of the given line. 1. 2x-3y=6 2. y=-2x 3. y=3

190. ## Algebra2

Give the slope and y-intercept of the given line 1. x+2=0

191. ## Algebra II

How would you go about doing this problem? I've tried and with the answer given I still can't figure it out. If anyone could explain it would be greatly appreciated! (((2x)^2 2x)^2 2x)^2

192. ## Algebra2

Find the slope of the line that is a) parallel and b) perpendicular to the given line. 1. x= -8 2. y=10

193. ## Grammar

Select the correctly punctuated sentence: A) The black car is her’s, and the white car is theirs. B) The black car is hers, and the white car is their’s. C) The black car is her’s, and the white car is their’s. D) The black car is hers, and the

194. ## Religion

why should religion and politics be kept separate?

195. ## religion

What is the role of the church in relation to media today? How does media affect people morally and ethically? please help

196. ## chemistry

Sodium-24, a beta-emitter used in diagnosing circulation problems, has a half-life of 15 hours.Write the balanced nuclear equation for this emission.

197. ## Algebra2

Find the center and radius of the given circle. 1. x^2 + y^2 + 10y + 21 = 0

198. ## Math

A spinner has numbers 1-16 on it. Probability of 6? 1/16 Probability not 6 15/16 Probability even number 8/16 Probability multiple of 3 5/16? Probability not a multiple of 3 11/16?

199. ## math

an empty trailer has a mass of 850kg when the trailer carries a load its mass is 1.4t what is the mas of the load?

200. ## Finance

We are considering the introduction of a new product. Currently we are in the 34% tax bracket with a 15% discount rate. This project is expected to last five years and then, because this is somewhat of a fad project, it will be terminated. The following

201. ## algebra

Use factoring and the zero-product property to solve the following problems. 1. z(z-1)(z+3)=0 2. x^2-x-10=2 3. 4a^2-11a+6=0

202. ## science

can you please tell me which catergory these belong in chemical or physical property? 1. arrangement of particles have changed 2. absorb or release. energy(endothermic/exothermic reactions) 3. change in appearance only. 4. cant be undone. 5. size and shape

203. ## accounting

marcum company was started in 2012 when issued a note to borrow \$6,200 cash. write an accounting equation and record the effects of the borrowing transaction under the appropriate general ledger accounts heading.

204. ## physics

An ore car of mass 37000 kg starts from rest and rolls downhill on tracks from a mine. At the end of the tracks, 28 m lower vertically, is a horizontally situated spring with constant 2.8 × 10 5 N/m. The acceleration of gravity is 9.8 m/s 2 . Ignore

205. ## physics

In an arcade game a 0.135 kg disk is shot across a frictionless horizontal surface by compressing it against a spring and releasing it. If the spring has a spring constant of 155 N/m and is compressed from its equilibrium position by 7 cm, ﬁnd the speed

206. ## Physics

An object is placed 8 cm in front of a convex lens of focal length 6 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.

207. ## human services

How does a human services worker integrate the use of mediation, or third party neutrality, when he or she also serves as an advocate for the client and is an employee of the agency?

208. ## Physics

An object is placed 5 cm in front of a concave lens of focal length 7 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.

209. ## Physics

An object is placed 10 cm in front of a convex mirror of focal length 4 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.

210. ## Proportions

To convert a temperature in degrees Celsius to degrees Fahrenheit, multiply the Celsius temperature by 9/5 and then add 32 degrees. Is a temperature in degrees Celsius proportional to its equivalent temperature in degrees Fahrenheit? Explain your

211. ## Physics

An object is placed 6 cm in front of a concave lens of focal length 3 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.

212. ## physics

A bird is ﬂying with a speed of 19.0 m/s over water when it accidentally drops a 2.50 kg ﬁ!@#\$%^&he acceleration of gravity is 9.81 m/s^2 If the altitude of the bird is 9.00 m and air resistance is disregarded, what is the speed of the ﬁsh when it

213. ## Grammar

Select the correct statement or statements: A) Commas and periods always go outside the ending quotation mark. B) Semicolons and colons always go inside the ending quotation mark. C) Question marks and exclamation points go inside the ending quotation mark

214. ## Grammar

The first letter of a sentence is not always capitalized. A) True B) False Answer B In a numbered list in outline form, the first letter of each item on the list is always capitalized. A) True B) False Answer A

215. ## Grammar

Select the correctly capitalized and hyphenated sentence: A) The patient is a well developed, well nourished white male, in no acute distress. B) The patient is a well-developed, well-nourished White male, in no acute distress. C) The patient is a

216. ## maths

in a G.P the third term is 32 and the fifth term is 4 find the first term?

217. ## Calculus

ind the derivative of y= (2x^2+1)/(x-3)

218. ## calculus

Find the derivative of y=ln⁡(ln⁡(x))

219. ## 7th grade math Ms. Sue please

Multiple Choice Use an equation to solve the problem. 1. What is 57% of 11? (1 point) 11 = 0.57 • n; 19.3 n = 57 • 11; 627 n = 0.57 • 11; 6.27 11 = 57 • n; 0.19 2. 224 is 25% of what number? (1 point) 224 • 0.25 = w; 560 224 = 0.25 • w; 896 224

220. ## Math

If Jason tosses a cube numbered from 1 to 6 what is the Probability that he will not toss a 3? 5/6? What is the probability that Jason will toss a number less than 7? 6/6? A box contains 25 cubes If you select one cube the probability of choosing a red

221. ## Grammar

Select the sentence in which the verb tenses agree: A) The patient was taken to the operating room, placed in the supine position, and general endotracheal anesthesia will be induced. B) The patient will be taken to the operating room, was placed in the

222. ## 8th grade math

Find the interest earned on each account. \$970 at 4 1/2% simple interest for 2 years. I don't know if I solved the problem correct please help: I = p x r x t = 970 x 0.42 x 2 = 814.8 I don't know what number to convert 1/4 to!

223. ## algebra

Use factoring and the zero-product property to solve the following problems. 1.9r^2-30r+21=-4

224. ## Physics

How long would a braking torque of 3.17 N·m have to act to just stop a spinning wheel that has an initial angular momentum of 6.67 kg·m2/s?

225. ## Grammar

When a the subject of sentence has 2 or more nouns or pronouns connected by “and,” the subject is singular and requires a singular verb. A) True B) False My answer B

226. ## Calculus

Evaluate the definite integral of the transcendental function. the integral from 0 to 5 of (2^x +8)dx. I got 40+ 31/log(2)but that's wrong.

227. ## Calculus

use mean value theorem: f(x)= 7- 2^x, [0,4], c=?

228. ## Chemistry

What is C2H5OH+3O2>CO2+H2O balanced?

229. ## Grammar

When a the subject of sentence has 2 or more nouns or pronouns connected by “or” or “nor,” the verb must agree with the noun or pronoun that appears closest to the verb in the sentence. A) True B) False I answered A

230. ## Chemistry

Balance the following equations: A. N2O>N2+O2 B. HBr>H2+Br2 C. CH4+O2>CO2+H2O

231. ## 5th math

What are the next three numbers in this pattern? 2,5,3,5,4,5,_,_,_ 6,5,7? Right or wrong please explain.

232. ## science

i still don't know what to do for my science fair please help thank you justin

233. ## algebra

Simplify 3x to the 4th times yto the 5th over9xy toto the7th all in parenthesis

234. ## Grammar

When a sentence has a prepositional phrase, it is best to ignore the prepositional phrase when determining what the subject is. A) True B) False Answer is B

235. ## account

Assume it is Monday, May 1, the first business day of the month, and you have just been hired? Assume it is Monday, May 1, the first business day of the month, and you have just been hired? Assume it is Monday, May 1, the first business day of the month,

236. ## math question

Mrs. Diaz wants new carpet for her living room.How many square yards will she need? So for that question there is a picture of a square that shows 11 yards on the bottom line and 9 yards on the right side. Also if the carpet costs \$15.99 a square yard, how

237. ## Grammar

The indefinite pronoun “no one” is A) plural B) singular C) singular or plural depending on the context My answer is B

238. ## Math

A bag has 20 balls numbered from 1 to 20. If you guess the number of the ball you draw from the bag you win a prize. What is the probability that you will not win a prize? 19/20? If Keri draws a card from a stack the probability that it will be a 10 is

239. ## Grammar

The indefinite pronoun “either” is A) plural B) singular C) singular or plural depending on the context My answer is C

240. ## Grammar

The indefinite pronoun “all” is A) plural B) singular C) singular or plural depending on the context My answer is A

241. ## math

use each of the digits 1, 2, 3 (one time each)and any combination of operations to create and equation where the answer is 5 please help Abbigail

242. ## Grammar

An antecedent is A) The first pronoun in a sentence B) The noun that a pronoun refers back to C) The pronoun that a noun refers back to my answer is B but for some reason it looks like it could be C

243. ## College Algebra

A picture frame has a total perimeter of 2 meters. The height of the frame is .62 times its width. Find the dimensions of the frame.

244. ## seventh grade math

if 1/2 in. = 1/3 feet then how many feet is 27 inches please someone help me ................ its drawn to scale the 27 inches

245. ## Grammar

The indefinite pronoun “either” is A) plural B) singular C) singular or plural depending on the context My answer is C

246. ## Physics

A satellite is orbiting the earth at a distance of 1.00 x 10^3 km. What is its speed?

247. ## Physics

No glass is perfectly transparent. Mainly because of reflections, about 92% of light passes through an average sheet of clear windowpane. The 8% loss is not noticed through a single sheet, but through several sheets it is apparent. How much light is

248. ## Grammar

A nominative pronoun (Select all that apply) A) Can be used as the subject of a sentence B) Can be used as the predicate of a sentence C) Can be “I,” “you,” “he,” “she,” “it,” “we,” “they,” “who” D) Can be “me,”

249. ## Grammar

Select the correct sentence: A) She is younger than he and I. B) She is younger than he and me. C) She is younger than him and I. D) She is younger than him and me. My answer A I feel like C could be the right one also

250. ## Physics

What happens after an elastic collision between a hydrogen atom at rest and a helium atom moving 150 m/s? Which direction will the particle move after the collision? Which particle will have a higher speed after the collision? What happens when a neutron

251. ## Grammar

Select the correct sentence: A) One of the bed pans had been moved from its original location. B) One of the bed pans had been moved from it’s original location. I answered A

252. ## pre algebra

solve the equation step by step.list each step along with the property you used during that step. -5 x 1 x 11 x 4

253. ## Geometry

In triangle EFG, M

254. ## pre algebra

what type of measurement would you use to describe the amount of water a pot can hold?

255. ## math

we make 1 square with 4 matches, 2 squares with 7 matches and 3 squares with 10 matches.How many squares canwe make with 100 matches ?

256. ## Chemistry

You have a single crystal of 100% pure gold. Identify which of the following defects you would expect to be present at room temperature. Free Surface Gain Boundaries Vacancies Inclusions Substitutional impurity atoms interstitial impurity atoms. Thank you.

257. ## math

what is the next number in the sequence 2,3,7,16,32,______ .

258. ## Grammar

Select the correct sentence: A) Whose life is it? B) Who’s life is it? My answer is A

259. ## Grammar

Select the correct sentence: A) For who did you vote? B) For whom did you vote? My answer is B

260. ## Grammar

42. Select the correct sentence: A) They, theirselves, had a happy holiday celebration. B) They, themselves, had a happy holiday celebration. I answered B

261. ## Physics:Wave Motion

A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) do the marker

262. ## math

these are GLOOPS. X 8 T A U these are not GLOOPS. B 7 D 2 S which of these are GLOOPS? H 5 W 3 E I Q.

263. ## Algebra

The perimeter of Greg's rectangular deck is 170 feet. The length of the deck is four times the width. What is the dimensions of the deck?

264. ## Chemistry

according to the bohr model of the hydrogen atom, what is the closest an electron can get to the nucleus? What is the farthest it can get from the nucleus? ( if the latter answer seems absurb, it might amuse you to know that it is the same value predicted

265. ## math

how many twelths in 3.1/2 ?

266. ## Grammar

Select the correct sentence: A) Whoever arrives first has first pick of the desserts. B) Whomever arrives first has first pick of the desserts. I answered A, whomever just doesn't seem to fit.

267. ## Math

How can I get 24 out of 2.4, 7.5, 1, and 6 using +, -, *, and/or /

268. ## physical education

how do you know when you are growing

269. ## 7th grade math Ms. Sue please

Find the percent of markup. Round to the nearest whole percent. 6. Store's Cost: \$136.50 Selling Price: \$184.70 (1 point) 48% 26% 14% 35%6. Store's Cost: \$136.50 Selling Price: \$184.70 (1 point) 48% 26% 14% 35% So you previously said 48% wasn't

270. ## Grammar

Parallel construction in writing means using similar forms of words, phrases, or clauses in sentence patterns and structures. A) True B) False my answer is A

271. ## physics

An archer pulls her bow string back 0.370 m by exerting a force that increases uniformly from zero to 225 N. What is the equivalent spring constant of the bow?

272. ## Grammar

he indefinite pronoun “few” is A) plural B) singular C) singular or plural depending on the context My answer is A

273. ## us history

I have an AP US History test tomorrow and need to make a study guide. One of the words/phrases is The Virtuous Republic. I cannot find a definition for U.S. History what The Virtuous Republic is. Thanks!

274. ## Language Art

My grandfather is the friendliest man I know. What does friendliest mean? A) Most freindly B) Always friendly or C) More friendly

275. ## Physics

An aluminum wire with mass/unit length of p = 5*10^-4 kg/m lies on the ground, running east-west. The wire feels the earth's magnetic field, which has magnitude B = 5*10^-5 T. Assume the wire is in Columbia, where the Earth's magnetic field runs due north,

asked by Huy Nguyen
276. ## math excel

an antelope ran 237 feet in 3 seconds. if the antelope continued to run at the same rate, how many seconds would it take him to run 790 feet

277. ## Algebra

Find the equation of the line and write your answer in the slope-intercept form. 1. Has a y-intercept of 5 and a slope of 2. Has a slope of -5 and a y-intercept of 2/3. 3. Has a slope of -3 and contains (4,9). 4. Has a slope of 4/9 and contains (0,-2) 5.

278. ## math

The demand function for a certain brand of CD is given by the following equation where p is the wholesale unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. P=-0.01X^2-0.1X+6 Determine the consumers' surplus if

279. ## Chemistry

The binding energy of electrons in a metal is 194 kJ/mol. Find the threshold frequency of the metal. ----------------- The heat of fusion of ice is 6.00 kJ/mol. Find the number of photons of wavelength = 6.78×10^−6 m that must be absorbed to melt 6.80 g

280. ## College Physics 1

A mass is oscillating on a spring with a period of 4.60s. At t=0s the mass has zero speed is at x=8.30cm. What is the value of t the first time after t=0s that the mass is at x=4.15 cm?

281. ## algebra

Really need help with one problem. The table shows the annual consumption of cheese per person in the United States for selected years in the 19th century. What cubic model best fits this data? Year Pounds Consumption 1915 4.156 1922 4.857 1946 7.16 1991

282. ## Algebra

In the following problem, the digits 0-9 have been replaced with letters. Can you reconstruct the original multiplication problem by identifying what digit each letter represents? TEA (times)x_TEA_ SEA TNNA (add)t_TEA_ (ans.) CHINA

283. ## chemestry

what is the charge on an ion with 25 protons and 29 electrons?

284. ## CHEMISTRY

Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br- and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may

285. ## chemestry

what is the chemical formula for maganese(II)iodine?

286. ## CHEMISTRY

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (1a) Write a balanced chemical equation for the neutralization

287. ## chemestry

what is the name of BCl3

288. ## English

Could you help me rephrase this sentence? "Understanding the cause for Bartleby's reason to be non-social introvert and to offer polite refusals when asked to do something would suggest whether he deserves sympathy or disdain."

289. ## CIVICS PLEASE!!!!!

How did frozen orange juice concentrate revolutionize history? (Please if you give me an answer or a link, do not have it be based on Orange juice I need FROZEN ORANGE JUICE CONCENTRATE) Thanks!

asked by Kara Cunningham
290. ## physics

A 53.6 kg circus performer bobs up and down at the end of a long elastic rope at a rate of once every 2.80 s. The elastic rope obeys Hooke's law. Find how much the rope is extended beyond its unloaded length when the performer hangs at rest. ** I think Im

291. ## math

If v = volume then what is the answer to v=6x2x5. My paper says 100cm3 but is that right?

292. ## Physics

A race car has a mass of 714 kg. It accelerates uniformly from rest, and travels 55 m in 2.95 s. What is the acceleration of the car? And, what is the net force acting on the car?

293. ## Physics

A 16 kg box slides across the floor with an initial velocity of +7.8 m/s. It comes to a stop after sliding +14.6 m. How much friction was present?

294. ## Physics

Tigger jumps into the sandpit. As this 13 kg animal jumps up, his initial velocity is 6 m/s with an angle of 26 degrees. As Tigger lands into the sandpit, how much work is done by the sand to stop him? Answer in units of Joules

295. ## ALG2! WORD PROBLEM! PLZ HELP!!

A family of 5 comes to the amusement park. There are two adults and three children (under the age of 12). They qualify for a special family rate of \$174.45. The clerk tells them that a child's ticket always costs \$11 less than an adult's ticket. How much

296. ## Geometry

Rhombus, rectangle, and squares

297. ## English

Could you help me rephrase this sentence? "Understanding the cause for Bartleby's reason to be non-social introvert and to offer polite refusals when asked to do something would suggest whether he deserves sympathy or disdain."

298. ## ALG2! WORD PROBLEM! PLZ HELP!!

A business wants to give each of its employees a free ticket to the amusement park and has budgeted \$1200 for tickets. 1. Write and solve an inequality to find the maximum number of 1-day, adult tickets that can be bought. When you round your answer,

299. ## science

A 2.24 kg mass on a frictionless horizontal track is attached to the end of a horizontal spring whose force constant is 4.45 N/m. The mass is displaced 3.06 m to the right from its equilibrium position and then released, which initiates simple harmonic

300. ## Physics

A 2.24 kg mass on a frictionless horizontal track is attached to the end of a horizontal spring whose force constant is 4.45 N/m. The mass is displaced 3.06 m to the right from its equilibrium position and then released, which initiates simple harmonic

301. ## math

Write to number sentences using the to numbers 7,56,and 8 then use the same numbers to show the division way label each number with its special math name

302. ## CHEMISTRY

An equilibrium mixture of the following reaction was found to have = 0.0325 at 1200 degrees C. What is the concentration of I? I2(g)2I (g) Keq=1.3×10−2 at 1200

303. ## Precalc

An investment of \$37,000 was made by a business club. The investment was split into three parts and lasted for one year. The first part of the investment earned 8% interest, the second 6%, and the the third 9%. Total interest from the investments was

304. ## Chemistry

Metals yield at a stress much lower than those calculated on the basis of their bond strength alone. This is explained by the presence of defects. Identify the principal defects responsible for this observation.

305. ## Chemistry

You have a single crystal of 100% pure gold. Identify which of the following defects you would expect to be present at room temperature.

306. ## math

What is 43 over 15

307. ## Pre-cal

Two lookout towers are situated on mountain tops A and B, 4 mi from each other. A helicopter firefighting team is located in a valley at point C, 3 mi from A and 2 mi from B. Using the line between A and B as a reference, a lookout spots a fire at an angle

308. ## English

"Understanding the cause for Bartleby's reason to be an introvert and to offer polite refusals when asked to do something would suggest he deserves either sympathy or disdain." Thank You Ms. Sue, That was my thesis for a paper and I need to reword it,

309. ## 3 grade grammar

Is the grammar correct not sure if there should be an apostrophe after the s in dads Mother planned a surprise party for Dads birthday.

asked by Daniel mom
310. ## Physics Quesion

A .140 kg baseball is thrown with a velocity of 41.4 m/s. it is struck with an average force of 5000N, which results in a velocity of 37 m/s in the opposite direction. How long were the bat and ball in contact?

311. ## Calculus 2

Calculate c(sub0), c(sub1), c(sub2), c(sub3), and c(sub4) for the power series the sum from n=0 to infinity of c(subn)x^n that represents f(x)=tanx. Use the first two nonzero terms of the series to approximate the tangent of 1/4 radian. Compare your

312. ## English - writing

Is this a run-on sentence? Though I do believe we need to be useful, honorable, and compassionate to live a successful life, I would argue that the purpose of life is to be happy, but only through the aforementioned requirements can we achieve happiness,

313. ## economics

The actual change in the money supply equals

314. ## MRP Operations Managment

On Hand is the quantity of the item that is on hand at the beginning of period 1. Lead time is the amount of time from when an order is placed to when it arrives. See page 278. Lot Size - LFL means lot-for-lot, we order material only as it is needed. See

315. ## Algebra

A golf resort offers the following two special packages. The Par 3 Package includes four nights of lodging and three rounds of golf for \$443.50. The Par 5 Package includes seven night of lodging and five rounds of golf for \$765.50. The rate for each night

316. ## algebra

a farmer grows corn, tomatoes, and sunflowers on a 320 acre farm. this year the farmer wants to plant twice as many acres of tomatoes as sunflowers. The farmer also wants to plant 40 more acres of corn than of tomatoes. How many acres of of each crop

317. ## English

"Understanding the cause for Bartleby's reason to be an introvert and to offer polite refusals when asked to do something would suggest he deserves either sympathy or disdain." I need to reword the whole thesis using different words but meaning the same

318. ## Algebra:'(

I understand how to multiply a polynomial by a monomial for example 6pq(3p^2+4q)= 18p^3q+24pq^2 but i don't know how to do problems like this 5(2s-1)+3=3(3s+2) HELP PLEASE!!

319. ## Geometry

A door is 6ft 6in high and 36 in wide. Can a thin piece of of plywood 7ft wide be carried through the door?

320. ## Chem

How do you identify which reagent is in excess when you are given just an equation and no masses

321. ## math

Determine the comparable interest rate for a \$50,000 loan when the quoted information is 10.6% + 0.5 pt + \$400. (Round your answer to two decimal places.)

322. ## English

Thank you very much, Ms. Sue

323. ## Math

-75= 5(3m-3)-3m. Can someone explained this problem to me and how to solve it. I tried doing it and had several answers

324. ## algebra 1

Two vans leave town at the same time going in opposite directions. one travels at 60 miles/hr. the second travels 30 miles/hr. in how many hours will they be 180 miles apart?

325. ## pre-calc help !!!!!!!

if someone could show me how to solve this problem 1) cos(345°)

326. ## english

inthe book bookseller of kabul which character displayed bravery and stuck tontheir convictions

327. ## MATH

HOW MANY SEVEN-DIGIT NUMBERS LESS THAN 1,048,000 CAN BE MADE USING THE DIGITS 0,1,4,6,7,8,AND 9? THINK: MAKE A LIST OF POSSIBLE WAYS TO REPRESENT YOUR SEVEN-DIGIT NUMBERS

328. ## Calculus 2

The function ln(x-1) can be expressed as a Taylor Series of the form sum of c(subn)(x-2)^n. Calculate the formlua for c(subn).

329. ## Math

how do you solve (17 - L)^2

330. ## math

5/x^2-4+2/x^2-4x+4-3/x^2-x-6

331. ## Chemistry

The most abundant isotope of uranium,238U , does not undergo fission. In a breeder reactor, however, a 238U atom captures a neutron and emits two beta particles to make a fissionable isotope of plutonium, which can then be used as fuel in a nuclear

332. ## precalculus

how do you solve problems as such: if a person drops a water balloon off the rooftop of a 36 foot building, the height of the water balloon is give by the equation h=-16t^2+36, where t is in seconds. when will the water balloon hit the ground?

333. ## History

To what extent was the French Revolution caused by new political ideas and influences?

334. ## Math

Factoring / solve for x 5.50x = 0.02x^3 + 5x

335. ## English

In class today we went over subordination an the different forms, but I'm still confused about subordination when it comes to the absolute and infinitive forms. How do you subordinate in these forms?

336. ## Chemistry

What happens when NaCl(aq) and AgNO2(aq) are mixed? Also, will the mass increase, decrease, or stay the same after the mixing? Why? Thanks!

337. ## precalculus

tan(x)-3cot(x)=0 solve.

338. ## Chemistry

Equal masses of P and Cl react according to the following equation: 2P + 3Cl2 --> 2PCl3 Identify which reagent is in excess. Calculate the percent that will remain at the end of the reaction.

339. ## precalculus

the function f(x)= square root sign 10x+20, x>=20/10 is a one to one function find its inverse

340. ## pre algreaba

Justin wants to use 188 ft of fencing to fence off the greatest possible rectangular area for a garden. What dimensions should he use? What will be the area of the garden?

341. ## Algebra

Two joggers are running around an oval track in opposite directions. One jogger runs around the track in 56 seconds. They meet every 24 seconds. How many seconds does it take the second jogger to run around the track?

342. ## MATH OMG HELP PLEEESE

Sarsh is currently at 83.7% in math. She has just finished a worksheet that is out of 30. She got 30/30 which is full marks. What percent is she at now in math? I HAVE NO IDEA!!!!!!

343. ## science

How many grams of citric acid is needed to titrate 20ml NaOH 0.05M their mole ratio is 1:3 respectively

344. ## trigonometry

2. Choose the point that lies on the curve r = 2 – 3 sin θ. A. (-5, 3π/2) B. (–2, π) C. (1, π/2) D. (5, π/2 3. Which of the following is not an approximate solution of x5 – 1 = 0? A. 0.3090 – 0.9511i B. 0.8090 + 0.5878i C. 0.3090 + 0.9511i D.

345. ## Research

I would like to have your input on the following questions. (1) Why is students study habits worth a study for a research proposal? (2) For the following research topic, describe a quantitative and a qualitatitive study focused on the topic by explaining

346. ## trigonometry

1. What is the area of triangle ABC if a = 47.0°, β = 57.8°, and a = 10.2 cm? A. 58.2 cm2 B. 43.5 cm2 C. 38.4 cm2 D. 33.3 cm2 2. Given triangle ABC with β = 41°, g = 14°, and a = 5.0, find the value of c. A. 6.2 B. 4.0 C. 1.5 D. 17 3. Resolve the

(a) Find the current in each resistor of the circuit shown in the figure byusing the rules for resistors in series and parallel. (b) Write three independent equations for the three currents using Kirchhoff’s laws: one with the node rule; a second using

348. ## math

if james spends 5/6 of his weekly allowance seeing a movie how many dollars does he have left? if a movie ticket cost 7.50 what is james weekly allowance?

349. ## physics

5. A bomber is flying at a height of 9 km at 800 km/h. How far in front of the target should he drop his bombs? show formulas*

350. ## math

if james spends 5/6 of his weekly allowance seeing a movie how many dollars of his allowance do he have left

351. ## chem

Predict the direction of the net reaction in each of the following system, as a result of increasing the temperature. Delta H is an indicator or whether the reaction releases heat delta H(-), or heat is absorb delta H(+). Write where the direction shifts.

asked by Angel Locsin
352. ## math

if james spends 5/6 of his weekly allowance seeing a movie how many dollars of his allowance do he have left

353. ## physics

Two billiard balls of equal mass move at right angles and meet at the origin of an xy coordinate system. Ball A is moving upward along the y axis at v_A = 2.0m/s , and ball B is moving to the right along the x axis with speed v_B = 5.0m/s . After the

354. ## CHEMISTRY

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (1a) Write a balanced chemical equation for the neutralization

355. ## chem

Using LeChatelier's principle, predict the direction of the net reaction in each of the following system as a result of decreasing the volume of the chamber for the reaction mixture. Where does the direction shifts? a.) N2(g)+ O2(g)= 2NO(g) b.)

asked by Angel Locsin
356. ## CHEMISTRY

Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br- and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may

357. ## social studies

Sela is a securely attached baby. Sela, therefore, is likely to successfully resolve the crisis of basic trust versus basic mistrust. India is insecurely attached, and is less likely to resolve the trust versus mistrust crisis successfully. In the long

358. ## physics

A large block P executes horizontal simple harmonic motion as it slides across a frictionless surface with a frequency f = 1.7 Hz. Block B rests on it, as shown in the figure, and the coefficient of static friction between the two is ìs=0.64. (b) What is

359. ## trig

angles of elevation to an airplane are measured from the top and the base of a building that is 40 m tall. The angle from the top of the building is 31°, and the angle from the base of the building is 40°. Find the altitude of the airplane. (Round your

360. ## chemistry

What is the minimum volume of 2.00 M HCl necessary to neutralize completely the hydroxide in 800.0 mL of 0.3 M NaOH?

361. ## Calculus 2

The following function has a series of the form the sum from n=0 to infinity of c(subn)x^n. Calculate the coefficients c(subn) and express the power series in summation notation. f(x)=(pi*x)/(pi*x+1) Thank you so much for your help!!!!