# Questions Asked onDecember 7, 2011

1. ## math

One day is 86,400 seconds. Express this number in scientific notation and estimate how far the sun's light travels i a day.

2. ## Physics

In starting an exercise, a 1.60-m tall person lifts a 2.10 kg book from the the ground so it is 2.20m above the ground. What is the potential energy of the book relative to (a) the ground,and(b) the top of the persons head? (c) What is the work done by the

3. ## Chemistry

Carbon tetrachloride (CCl4) and benzene (C6H6) form ideal solutions. Consider an equimolar solution of CCl4 and C6H6 at 25°C. The vapor above this solutionis collected and condensed. Using the following data, determine the composition in mole fraction of

4. ## physics

A dockworker loading crates on a ship finds that a 20 kg crate, initially at rest on a horizontal surface, requires a 73 N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 50 N is required to keep it moving

5. ## chemistry! URGENT

A standard solution is prepared for the analysis of fluoxymesterone (C20H29FO3), an anabolic steroid. A stock solution is first prepared by dissolving 10.0 mg of fluoxymestrone in enough water to give a total volume of 500.0 ml. A 100.0 micro liter aliquot

6. ## math

Mr.Shea saved \$2,500 in April. His monthly salary is Twice the amount he saved in April. In May, he saved a certain amount of money.He spent \$4,200 more than the amount he saved. How much did he save in May.

7. ## math

Find the point on the graph of the function closest to the given point. Function f(x) = xsquared Point (2, 1/2)

8. ## Math

find the Derivative of:: 1\R = 1\R1 + 1\R2

9. ## math

A painter needs to paint a circular floor that is 24 yards in diameter. A gallon of paint cover 59 square yards. How many gallons of paint is needed to cover the floor?

10. ## geometry

A regular hexagon is composed of 12 congruent 30-60-90 triangles. If the length of the hypotenuse of one of those triangles is 18 square root 3, find the perimeter of the hexagon.

11. ## Chemistry

The density of an elemental gas is 1.7824 g/L at STP. What is the molar mass of the element?

12. ## geometry

WHAT IS THE OPPOSITE OF 58 DEGREES

13. ## geometry

a ladder leaning against a wall makes a 60 degree angle with the ground. the based of the ladder is 4m from the building. how high above the ground is the top of the ladder

14. ## Math

A photograph measuring 8 inches by 6 inches is surrounded by a mat. The mat has the same width on all sides of the photograph. The photograph and mat are put into a glass photo frame which just covers the outside of the mat. If the area of the glass

15. ## FINANCE

You deposit \$2,000 in an account that pays 8% interest compounded semiannually. After 4 years, the interest rate is increased to 8.28% compounded quarterly. What will be the value of the account after 4 more years? (Do not round until the final answer.

16. ## calculus

Verify the identity: arctanx + arctan(1/x)=∏/2 using calculus theory. (Hint: Differentiate the left hand side of the identity)

17. ## math

joan can mow a 3-acre field in 4 hours. how ling will it take her to mow a 2-acre field?

18. ## chemistry

When zinc metal is reacted with hydrochloric acid, zinc chloride and hydrogen gas are produced. If 16.4 ml of 2.14 M HCl are used: a) how many grams of zinc metal are needed to completely use up the acid? b) What will be the molarity of the aqueous

19. ## Math

A set of five different positive integers has a mean of 19 and a median of 21. What is the greatest value of the greatest integer in the set?

20. ## Health care

patients often equate the quality of the service with the quality of health care. How can you change this perception using surveys and research?

21. ## physics

Rhonda Vous, the 445N human cannonball, is shot from her cannon, leaving it at 18.0 m/s. How much work did the cannon do on her?

22. ## Statics

A log of diameter D is available to be used as a beam carrying a uniformly distributed load of 400#/ft over a length of 32 feet. Determine the required diameter D necessary if Fb=1,200psi and Fv=100psi.

23. ## Physics

What type of reaction is CS2(g)+O2(g)= CO2(g)+S2O4(aq)+HEAT? A) Synthesis B) Decomposition C) Single Replacement D) Double Replacement E) Combustion F) Redox Reaction Thank You ^_^/ I really appreciate it!

24. ## math

two figures are similar. the ratio of the corresponding dimensions 3:4. the perimeter of the larger figure is 60 units.what will be the perimiter of the smaller figure

25. ## chemistry

a sample of 0.002 mole of HCL is dissolved in water to make a 2000mL solution. What is the molarity?

26. ## geometry

Find the value of ED, if AE = 6 mm, EB = 8 mm, and CE = 12 mm.

27. ## physics

Janet jumps off a high diving platform with a horizontal velocity of 2.89m/s and lands in the water 1.5s later. How high is the platform? The acceleration of gravity is 9.8m/s2 Answer in units of m How far from the base of the platform does she land?

28. ## chemistry

Exactly 1.0 L of hydrogen gas (H2) is collected over water at 292 K under a total pressure of 152 torr. If the vapour pressure of water is 16.5 torr at this temperature, what is the mole fraction of hydrogen in the gas sample? Volume of CO2 = L Mole

29. ## math

could you please solve and show steps for: 24-8/4*2+4(3)

30. ## Language Arts

1. Peanuts (are, is) valuable for many reasons. 2. Inventors (are, is) hard workers. 3. Cars (was, were) a good invention. 4. Sweet potatoes (was, were) easy to grow. 5. Peanuts (are, is) good for people. 6. Different crops (was, were) better. 1.are 2.are

31. ## Trig

1. Establish the identity: sin(theta+3pi/2)=-cos(theta) 2. Find the exact value of 2(theta) if sin(theta)=5/13 3. Show that: csc2(theta)-cot2(theta)=tan(theta) 4. Find the exact value of tan(cos^-1(square root of 3/2) 5. Approximate the value rounded to

32. ## chemistry

What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution?

33. ## Alg2

he annual Gross Domestic Product (GDP) of a country is the value of all of the goods and services produced in the country during a year. During the period 1985-1999, the Gross Domestic Product of the United States grew about 3.2% per year, measured in 1996

34. ## trig

a right triangle contains a 25 angle. if me leg is of length 5 inches what is the length of the hypotenuse

35. ## English

Hello. I again need your grammar help and will be very grateful for it. Please tell me if the sentences are OK: "This is a very difficult situation, 1)the same as in Greece. 2)the same as it is in Greece. 3)the same as that in Greece. 4)the same as the one

36. ## Calculus

How do you find the indefinite integral of (x^2-29x+5)/(x-4)^2(x^2+3)?

37. ## trig

Cos 3 alpha = - 0.1 solutions in degree

38. ## integral Calculus

ʃsin y dy/ √1 + cosy please help..thanks.. that's integration of sin y dy divided by (over) square root of 1 + cosy.

39. ## physics

if a 40.0-g stone is whirled horizontally on the end of a 0.60-mstring at a speed of 22m/s what is the tension in the string?

40. ## physics

1. A basketball player passes the ball to his teammate at an angle of 40degrees above the horizontal. The ball is released 1.5m above the floor at a speed of 5m/s. Find: a) the maximum height reached by the ball from the floor b) the horizontal required to

41. ## science

Explain how could use a spring,a ruler,some standard masses and some graph paper to find the weight of an unknown object.

42. ## Chemistry

A rock contains 200. µmol 238U (t1/2 = 4.5 109 yr) and 116 µmol 206Pb. Assuming that all the 206Pb comes from decay of the 238U, estimate the rock's age. Please explain step by step.

43. ## trig

tan theta= -4/3 and sec theta

44. ## calculus 2

what is the polar area between r=5sinx and r=5cosx

45. ## Question

Do I have to get a degree to go to Yale Art and Writing School???? What do I have to do to make it to Yale for art and writing???????????

46. ## English

I am seeking for some help in English (grammar and punctuation. Thanks!!! Please review the folloing: As you know, in the absence of timely copies of all bills and payments and medical records supporting the reasonableness and necessity of the services and

if you divide this number by 2 you will get 3 multiplied by 6. Subtract 3 groups of 3 and you will get 3 multiplied by 9. I am so confused trying to help my 8 year old figure this out i have come up with 9 then 36 then 0

48. ## Chemistry

The half life for a first order reaction is know to be 4.5 h. How long will it take for 85% to be decomposed, in h?

49. ## Physics

I understand there is a relationship between pressure & temperature in a sealed rigid container. An open container is placed in a freezer at -15 degrees C then the door is opened and the cap replaced with the freezer at 1000mb what will the pressure be

50. ## calc

R(t)=85 t-2 t**2; t=4

51. ## Chemistry

A rock contains 200. µmol 238U (t1/2 = 4.5 109 yr) and 116 µmol 206Pb. Assuming that all the 206Pb comes from decay of the 238U, estimate the rock's age. Please explain step by step.

52. ## Geometry

a parallelogram has the vertices (0,3), (3,0), (o,-3), and (-3,0). determine what type of parallelogram and find the perimeter and area

53. ## statistics

25% of the students in an English class of 100 are international students. Find mean, and standard deviation of this binomial distribution

54. ## chem

how to balance the following redox 1 ClO- +I- = Cl- +I2

55. ## math

find the distance between points P(7,4) and Q(1,2)to the nearest tenth

56. ## Math

The shortest side of a right angled triangle is 7cm less than the second shortest side. The sum of the squares of these two sides is equal to 289cm^2. The perimeter of the triangle in cm is? I don't get how to do this, I think Im meant to use a quadratic

57. ## trig

CosA*Cos17=1 then determine A

58. ## physics

An 77 person stands on a uniform ladder 4.0 long, that weighs 100 , as shown in the figure . The floor is rough; hence, it exerts both a normal force, , and a frictional force, , on the ladder. The wall, on the other hand, is frictionless; it exerts only a

59. ## calc

Annual sales of bottled water in the country in the period 1993-2003 could be approximated by the function below, where t is time in years since 1990. Were sales of bottled water accelerating or decelerating in 2000? How fast? R(t) = 10 t**2 + 100 t + 2400

60. ## Science 7R (another qs.)

Give an exmaple of an organ system in an animal and name the parts that make up the organ system? need help!!! plz thank u ps: just need 2-3 sentences to answer this qs.

61. ## Calculus 1

Francis starts walking north at 4 ft/s from an intersection I. At the same time Aram starts walking south at a rate of 5 ft/s from a intersection 1500 ft due east of I. At what rate are they moving apart 15 minutes later? (Rounding to 1 decimal place is

62. ## Algebra

Suppose a student wants to be a millionaire in 40 years. If she has an account that pays 8% interest compounded monthly, how much must she deposit each month in order to achieve her goal of having \$1,000,000? What is the present value of this annuity?

63. ## Social Studies 7R (another qs.)

Why did the pilgrims come to america???????/ plz help

64. ## Writing

Is there any writing compitions for middle schoolers???

65. ## Math

You wish to purchase a house for \$200,000 with 20% down. You will have it financed over 30 years at a rate of 8%. In addition, your yearly real estate tax is \$4,800 while your monthly insurance payment on the home will be \$30. What is your monthly mortgage

66. ## Physics

14. You throw a 2 kg. Stone straight up into the air with a velocity of 6m/s. What is the max height of the stone and the total time it takes for it to come back down?

67. ## socials

describe roles of women and men in 1950's, give reasons why these men women accept these roles. women become actresses men join sports, hockey their favorite. Women also join sports like figure skating, swimming. they accept these roles because they want

68. ## Precalc

Find (-1+i)^1/3 list steps

69. ## Fine Art 7

Is there any art websites for middle schoolers to do some cool, creative, and pretty art work.

70. ## Fine Art 7 (another one)

is there any art compitions for middle schoolers ???

71. ## Math

The quadratic function f(x) = x^2 is transformed to g(x) = -2/3(x+3)^2 + 6 The point (6,36) on the graph of f is transformed to which point on the graph of g? Could someone please show me how to solve this:\

A fish tank weighs 80 pounds when 40% full of water, and it weighs 140 pounds when completely full. How many pounds does the tank weigh when empty?

73. ## physics

how much work can a 500 W electric mixer do in 2.50 min?

74. ## English

Hello. Please tell me if it's possible to say: 1) to declare a message; 2) to announce a message; 3) to sound a message; 4) to voice a message; 5) to present a message; (for example, Diplomats ... a message from the United Nations.) Thank you very much for

75. ## precalc

1. Find (-1+i)^1/3 2. Express 2(cos5pi/3 + isin5pi/3) in regular form. would this be correct: 1-√3i? 3. Find (2+4i)^3 in regular form. 4. Express 5(cos5pi/6 + isin5pi/6) in regular form. would this be correct?: -5√3/2 +5/2i?

76. ## English 7 (journals)

I have this assignment for english. Ok like I have a journal to write down my daily life (that what we supose to do for english to practice our writing). Is there any decorating notebooks ideas and journal entry ideas for middle schoolers.

77. ## physics

A track star goes in the long jump at 10 m/s at 37 degrees above the horizontal. What is the magnitude of the horizontal displacement?

78. ## CHemistry

When O2 reacts with C2H6, according to the equation: 2 C2H6 + 7 O2 = 4 CO2 + 6 H2O, how much CO2 is produced from 60.0 g of C2H6?

79. ## Pre-algebra

If zero is known as the trivial solution, what happens when x = 1? Can you show me how to solve this step by step? Thank you.

80. ## Government

Identify two alternative solutions for the high case load of the supreme court

81. ## human service

Can you help me understand the meaning of affirmative Action.

82. ## english

what logical fallicies are these If Jesus Christ were running for the presidency, conservatives would attack him for being a socialist and wanting to help the poor. They would say he is weak on defense and berate him for driving the money changers from the

83. ## socials

what is role of CRTC? you think agency is necessary? explain in paragraph format Role of CRTC is to regulate the amount of foreign material broadcast over the airwaves and impose rules requiring Canadian content. I think it may be a little necessary

84. ## i need help on graphing

solve each system by graphing 2x-y=4 5x-y=13

85. ## social studies

It says in my textbook that I have to predict what might have happened if the Maya civilization had continued into the present day and then it says to explain. Ms.Sue please, please help me! I need help!!!!!!!!

86. ## Math Help

Ali tosses 3 number cubes,and then multiplies the results using the formula a x(bxc)and (axb)x c.Which property of multiplication does Ali use? a(Associative Property Of Multiplication b(Commutative Property Of Multiplication c(Distributive Property Of

87. ## Physics

A 65-kg diver jumps off a 10.0-m tower. a) Find the diver's velocity when he hits the water. b) The diver comes to a stop 2.0m below the surface. Find the net force exerted by the water. I get the first part: sqrt(2ad), thus about 14 m/s downwards. For

88. ## algebra

I have a problem that I have no idea how to solve. The instruction say to solve and check the given equation by rational exponents. The equation is: x to the 5/2 power = 32. Can you show me how to do this step by step?

SUZIE HAD TO WRAP A TRUCK,A CAR, A BUS AND A TRAIN. IN HOW MANY ORDERS CAN SHE WRAP THESE PRESENTS?

90. ## Physics

A box is being pushed up the ramp by you at a 15 degree angle. The coefficient of kinetic friction between the box and ramp is .4. The box has a mass of 12 kg and you are pushing up the ramp with a force of 95N. What is the kinetic frictional force? What

multiply and simplify (y^2+10y+25)/(y^2-9)x(y^2+3y)/(y+5)

solve each system graphically. be sure to check your solution. if a system has an infinite number of solutions, use the set-builder notation to write solution set. if a system has no solution, state this. where appropriate, round to the nearest hundredth.

93. ## math

A diagonal of a rectangle measures 61cm. The width of the rectangle is 11cm. Find the length of the rectangle.

94. ## chemistry

0.249 g of a diatomic element occupies a volume of 125mL at 120 degrees C ad 2.00 at. This element is? Please help. I'm lost.

solve using matrices x+3y-3z=12 3x-y+4z=0 -x+2y-z=1

96. ## chemistry

0.249 g of a diatomic element occupies a volume of 125mL at 120 degrees C and 2.00 atm. This element is? Please help. I'm lost.

97. ## chemistry

0.249 g of a diatomic element occupies a volume of 125mL at 120 degrees C and 2.00 atm. This element is? Please help. I'm lost.

98. ## ELA

What sounds correct? The real reasons are cause? Or The real reason is cause? I think its with is

99. ## solve using cramer's rule

solve using cramer's rule 3x+4y=-1 5x-2y=4

100. ## physics

A rectangular loop of side 8cm and 2cm with a smal cut is movg out of uniform magnetic field of magnitude O.3t directed normal to d loop .wat is d emf developed acros d cut if d velocity of d loop is 1cm in a directed normal to d 1) longer side,2)short

101. ## ALGEBRA

write in simplified form. g(x)=(x^2-4)/(x^3)÷(x^5-2x^4)/(x+4) i got stuck at (x^-9)x+2/(x^2)x^4(x+3)

102. ## math

could you please solve and show steps for: 24-8/4*2+4(3)

solve using appropriate method. 3a-12b=9 4a-5b=3

104. ## math

a 41 inch ribbon was cut into five shorter ribbons of equal length how long was each shorter ribbon

105. ## trig

Prove that the statement is an identity: (tanx/cscx)=(1/cosx)-cosx

106. ## Chemistry

Are these shapes correct?PH3-trigonal pyramidal, CHCl3-tetrahedral, H2S-linear and PO4^-3-tetrahedral?

107. ## physics

A uniformrodofmass2kgandlength1mis supportedby a frictionlesspivot 25 cm down fromthetop,asshown.A smallballof mass 0.5 kg strikesthe stationaryrod horizontallyat 2 m/sandsticks. Astherodswings,whatisthe maximumanglee in degreesthatit makeswith the

Input 15 ? 30 10 9 3 1 Output 6 18 3 9 ? 30 90

109. ## physics

A uniformrodofmass2kgandlength1mis supportedby a frictionlesspivot 25 cm down fromthetop,asshown.A smallballof mass 0.5 kg strikesthe stationaryrod horizontallyat 2 m/sandsticks. Astherodswings,whatisthe maximumanglee in degreesthatit makeswith the

110. ## Math

Ali tosses 3 number cubes,and then multiplies the results using the formula a x(bxc)and (axb)x c. Which property of multiplication does Ali use? a(Associative Property Of Multiplication b(Commutative Property Of Multiplication c(Distributive Property Of

111. ## Urgent math

perform the indicated operation and if possible simplify. (2x+4y)/(2x^2+5xy+2y^2)*(4x^2-y^2)/(8x^2-8)÷(x^2+4xy+4y^2)/(x^2-6xy+9y^2) i don't understand this the answer is (2x-y)(x-3y)^2/4(x-1)(x+1)(x+2y)^2

112. ## Question

did pier 1 anooce the winners of the gift card contest??

113. ## math

if 500 nails weigh 1.35 kilograms, how much do 60 nails weigh?

114. ## hcs/335

is it important that the organization's ethical values support your ethical values? explain.

115. ## algebra 1

There are 16 coins in a piggy bank. The coins are all nickels and dimes. All together the total amount of money in the bank is \$1.05. How many of each coin are there?

116. ## Math

Can anyone solve this rational inequality y-3/5 < y+2/10

117. ## Physics

What is the approximate energy required to raise the temperature of 5 L of air by 160 °C? The volume is held constant. (Assume air almost entirely consists of nitrogen, oxygen, and argon, and that it is initially at 273 K. Use the numerical data found in

118. ## ALgebra

What would be the gcf for these polynomials equations? (1) 2x3 - 8x2 - 9x + 36 (2) 6x4 -10x³ + 3x².PLEASE HELP!!!

119. ## History

What was Uncle Sam's motto?

120. ## social studies

But it doesn't say anything about it !!!!!!!! HELP!!!

121. ## Math

The length of a rectangle is 3cm. If the length remains constant, and the width changes, what r the possible perimeters for the different rectangles?

122. ## math/ algebra

how can i find the numbers Quadratic equation the sum of 2 whole numbers is 23. their product is 120. find the numbers

123. ## socials

what was massey commission? was it established by federal government to investigate the state of Canadian culture?

124. ## Science

What factors affect weather and climate? I think it's the sun, the water cycle, the atmosphere, and the ocean. The Sun is the most important because you need the sun for water cycle You need the ocean for the water cycle

125. ## Chemistry

50.0 ml sample of ethylene has a mass of 55.505g. Find the density of ethylene.

126. ## human services

A budget systems model is the foundation from which budgeting systems can be used to evaluate the success of an agency or company. How are performance budgeting systems used to evaluate the efficiency and effectiveness of a human service agency? Why is

127. ## Social studi

I need the verb end each sentence.the boy ( send,sends)letter to his grandma.

128. ## Chemistry

What is the volume in liters occupied by 37.7 moles of CO2 at 9.54 atm and 55 degrees?

129. ## Social studi

I need verb sentence .Juno (read, reads) a letter from his grandma.

130. ## chemistry

A 30.0 mL sample of phosphoric acid is titrated with 18.0 mL of 3.0 M NaOH solution. What is the molarity of the phosphoric acid?

131. ## Math

An open box is to be made from a 10-ft by 14-ft rectangular piece of sheet metal by cutting out squares of equal size from the four corners and folding up the sides. what size squares should be cut to obtain a box with largest possible volume?

132. ## chemistry

How much heat is needed to raise the temperature of 75 grams of copper from 35„aC to 57„aC? The specific heat of copper is 0.385 J/g „aC.

134. ## chemistry

How much heat is needed to raise the temperature of 75 grams of copper from 35„aC to 57„aC? The specific heat of copper is 0.385 J/g „aC.

135. ## Math

Factor the polynomial X^3 + 7x^2 +15x + 9 I tried factoring by grouping. I got stuck at this part: x^2 ( x + 7 )...

136. ## physics

how do u find the horizontal force needed to push a wheel that weighs 300N and has a radius of 30m.it also lies on the stairs of 10m

137. ## Math

x^3 - x^2 - 14x +24

139. ## calculus

use differentials to estimate ln(e^4 +1) - ln(e^4)

140. ## math

y=1/2x^2+5x+29/2 i need help

141. ## math

A total of \$9000 is invested: part at 6% and the remainder at 14%. How much is invested at each rate if the annual interest is \$680

142. ## math

perform indicated operations. (5ab)/(a^2-b^2)+(a+b)/(a-b)

143. ## English

Hello. Will you please tell me if it's possible to use the following verbs with the word "message": 1)to declare; 2) to announce; 3)to sound; 4) to voice; 5) to present. For example, "Diplomats announced a message from the UN urging Syria to stop

144. ## Physics/Science

If a lever problem asks you to find a way to "lift" something, does that mean to balance the object(s), or to tilt it past the equilibrium?

145. ## Math

Bond : Face Value = 100,000 State Rate = 9% Semi-annual Payments Term = 3years Market Rate of 12% Amortize the bond to determine: Year 1 Interest Expense End of Year 1 carrying value. My Answers: Year 1 Interest Expense = 5,621.05 End of Year 1 carrying

146. ## calculus

Calculate f" for f(x)=g(e^(2x)), where g is a function defined for all real numbers & g admits second order derivative.

147. ## math

In a triangle, between J and K is 30in and between J and L is 25 degree, what is the measure of

148. ## Texas Government

Following the political realignment that occurred under Franklin Roosevelt, which of these oppositions began to reshape politics in Texas? a. Liberal versus conservative b. Landowner versus businessman c. Black versus white d. Democrat versus Republican e.

149. ## Physical Science

If a force of 10 N is applied to a 4.5 kg object, then the object will accelerate at 2.22 m/s2? True or false

150. ## Texas Government

Which of these defines a majority in elections? a. Three-quarters b. 51 percent c. More than half d. Two-thirds e. 60 percent Is it going to be B or C ?

151. ## math

perform indicated operations. (a+3)/(5a+25)-(a-1)/(3a+15) (a+3)/5(a+5)-(a-1)/3(a+5)=(a+3)5(a+5)/5(a+5)3(a+5)-(a-1)5(a+5)/5(a+5)3(at5)= 5a^2+25a+15a+75+5a^2+25a-5a-25/5(a+5)3(a+5) i got (10a^2+60a-50)/5(a+5)3(a+5)and that's wrong. where did i go wrong?

152. ## calculus

given f(x)=ã(x). find the distance of the point P(2,5) from the line tangent to the functions at x=4.

153. ## geometry

FIND THE THIRD ANGLE IN A TRANGLE IF TWO OF THE ANGLES ARE 43 AND 114

154. ## chemistry II

how do I calculate how many moles of solute particles are in one mole of naphthalene, C10H8?

155. ## trig

I need to prove parallelogram law using the law of cosines. 2AB^2 + 2BC^2 = AC^2 + BD^2 Please, help me to do this.

156. ## Statistics

Simple Linear Regression Analysis 2. Weight of Car: Miles gallon – Do heavier cars really use more gasoline? The following data were obtained from Consumer Reports (Vol 62 no. 4). Weight of car is in hundreds of pounds. Car Weight 27 44 32 47 23 40 34 52

157. ## Math

A rectangle has a measurement of 15 cm long and 9 cm wide. Label another rectangle that is similar and why are they similar?

158. ## Texas Government

Who ultimately chooses a president's running mate? a. The electoral college b. The presidential nominee c. The voters Electoral college or Nominee? ia m soo confused

159. ## calculus

Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y=x^2, y = 0, x = 0, x = 3, about the y-axis

160. ## world history

Who won the battle between the English and the Welsh ? the English right?

161. ## Global H.S

why was the Byzantine empire able to survive for 1,000 years

162. ## chemistry

how is this express understood 40 w/v

163. ## geometry

Need to find the perimeter in feet... The width is 35ft and 5in The length is 10ft and 3in Need to write the answer in feet... If there is anybody that can point me in the right direction.. I know I have to convert in. into feet.. and 12in= 1 foot

164. ## College Physics

A monatomic ideal gas with a pressure of 1.39x10^5 Pa and has a volume change of 260 L to a volume of 39.0 L. the second pressure is 3.28x10^6. How much work is done?

i have to fill in the blank: adverbs of time tell ___ something happens. I wrote: when adverbs of frequency tell ___ something happens. i wrote : how often or is it also when? can you check this? i have an ARTICLES EXCERCISE 1) ARTICLES ARE USE WITH: a

166. ## Biology

what does this mean: the rate of blood flow to an organ is related to resistance to flow in the small arteries and arterioles

167. ## physics

A cue ball (mass = 0.140 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick which applies an impulse of +1.60 N·s to the ball. The ball then slides along the table and makes an elastic head-on collision with a second

168. ## US GOVernment

Which of the following is NOT true of third parties? a. They have never gotten over 10 percent of the popular vote. b. They are formed by independents. c. A majority of Americans favors the idea of a third party. d. They have seldom won electoral votes in

169. ## USA PoliScience

If candidate A and B win 300,000 and 200,000 votes, what must candidate C win to have achieved a plurality? a. 500,001 b. 250,001 c. 400,001 d. 300,001 e. 350,001 Hmm I would say C or A ?

170. ## physics

A car starts from rest and reaches a velocity of 8 m/s in 4 seconds. a) What is its acceleration? b)If its acceleration remains the same, what will be its velocity in 15 seconds? plsss helpp meeeeeeeeeeeeeeeeeeeeeee

171. ## Math

Some students might argue that if you know how to factor a sum of cubes, then you do not need to know how to factor a difference of cubes. Explain why you agree or disagree.

172. ## Algebra (URGENT)

Put this into function form: 2x+5y=20 Thanks!

173. ## Algebra 2

Find each of the following for x^2+5x+6 and x^2+x-2. a) the LCM b) the GCF

simplify x^5-x^3+x^2-1-(x^3-1)(x+1)^2/(x^2-1)^2

175. ## Algebra

What would be the gcf for these polynomials equations? (1) 2x3 - 8x2 - 9x + 36 (2) 6x4 -10x³ + 3x².PLEASE HELP!!!

176. ## Texas Government

Unlike presidential primary elections, general presidential elections focus on the a. party loyalists. b. Electoral College. c. interest groups. d. campaign contributions. e. safe states. Is it going to be B or E ?

177. ## Calculus

Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y=x^2, y = 0, x = 0, x = 3, about the y-axis

An oscillator with a mass of 281 g has a speed of 119.1 cm/s when its displacement is 2.80 cm and 34.2 cm/s when its displacement is 7.80 cm. What is the oscillator's maximum speed (in m/s)?

179. ## geometry

1. Initial point: (0, 0); Terminal point: (3, -4) A Lesson 13 B Lesson 13 C Lesson 13 D Lesson 13 E Lesson 13 F Lesson 13 2. Initial point: (3, 5); Terminal point: (-2, -1) A Lesson 13 B Lesson 13 C Lesson 13 D Lesson 13 E Lesson 13 F Lesson 13 In problems

180. ## math

shawn is writing down the family recipes in a cookbook. he has 21 recipes left to write down. he has 3 pagegs left to fill up. if he wants to put the same number of recipes on every page, how many go on each?

181. ## math

Find the length of right side of a triangle if a=2,b=4 so c=?

182. ## math

The area of a circle with radius r is given by the formula A=πr^2. If a circle has area 36π square inches, what is the radius?

find all x-intercepts of the given function f. f(x)=3x+10ã(x) -8

184. ## math

Im having a problem understanding this problem so I cant solve it. Bruce knows how many key are on his keyboard, but some don't work. How does Bruce find the number of keys that work? write to explain

185. ## algebra

what is the unit price of a 5 poung bag of potatoes selling for \$4.75

186. ## preposition questions

i need to underline the preposition in each sentence and draw an arrow pointing to its object 1) Valentines Day is in February. prep - in pointed to Februaray 2) Ihave new puppy at home. prep = at pointed to home 3) There are 2 pairs of shoes under the

187. ## Math

X=x^2+3x-10. Graphed as a parabola Include the x,y table please. And line of symmetry.

188. ## chemistry

In a similar experiment to yours, one tablet of Antacid A is titrated to its endpoint with 15.5 mL of 0.5 M HCl and one tablet of Antacid B is titrated to its endpoint with 24.3 mL of 0.5 M HCl. Which is the more effective antacid?

189. ## chemistry

In a similar experiment to yours, one tablet of Antacid A is titrated to its endpoint with 15.5 mL of 0.5 M HCl and one tablet of Antacid B is titrated to its endpoint with 24.3 mL of 0.5 M HCl. Which is the more effective antacid?

190. ## geometry

Given Quadrilateral ABCD and the points A(-2,6), B(4,6), C(4,-3) and D(-2,-3). What are the lengths of each side, and what is the most specific name for this polygon.

191. ## Physics

Read each statement below. For each situation, calculate vi, vf, pi, pf, the impulse vector F􏰁t, and the amount of force needed for the change to occur. All situations refer to a truck with a mass of 2840 kg 3.) The truck is at rest. In 5.00s, the truck

192. ## English(Review Paper)

Will you please proofread this? Indigo By:Alice Hoffman Bryce Three Key Events 1. Martha Glimmer lives in the horrible town of Oakgrove. Her two adopted brothers are outcasts in the town of Oakgrove because they have webbed toes and fingers. They all long

193. ## English(Review Paper)

Will you also proofread this? Cut By Patricia Mccormick Bryce Romig If I had the opportunity to ask Patricia Mccormick two questions about the main character, I would ask her why the main character Callie feels as though she has to self mutilate as a way

find a quadratic function that fits the set of data points. (1,4), (-1.6), (-2,16) what did i do wrong, i got -2x^2-x+7

195. ## Accounting

Lovvern Trophies makes and sells trophies it distributes too little league ballplayers. The company normally produces and sells between 8,000 and 14,000 trophies per year. The following cost data apply to various activity levels

196. ## pre calc

3 radical 3=-3 cot theta on interval 0

197. ## physics

A race car has a mass of 705 kg. It starts from rest and travels 39.0 m in 3.0 s. The car is uniformly accelerated during the entire time. What net force is exerted on it?

198. ## English

Select the gerund phrase in the sentence below. Then, determine the noun function of the gerund. Writing a research paper sounds difficult

199. ## pre calc

you are 7 miles N & 4 miles W of the cabin how do you get back to the cabin? Bearing?

200. ## pre calc

-4 - (1/2) sin theta=-16 +radical 3 over 4 what are the 2 points of intersection? 0

201. ## english 9

which paragraph of the article best supports the authors argument against clear cutting?

202. ## science

What is epilepsey?

203. ## English

Maus Chapter 5 questions How did Vladek and Anja escape from Srodula? What is a Kombinator? Is Maus a better book because Art Spigelman chose to share his mother's suicide? Why is Vladek unfriendly to Artie on page 98? What is going on here? The Village of

204. ## math

what is the smallest to greatest of these fractions 3/5,7/8,8/10,2/4

205. ## physics

if a tank was at 62 degrees farenhiet with a pressure of 14.7 psi. what would the presure be if the temperature rose to 178 degrees farenhiet?

206. ## Physics

PLEASE HELPPP! An ice skater hits a patch of rough ice. The rough patch has a kinetic coefficient of friction with her skates of 0.13. The skater's mass is 51 kg. She passes over the rough patch in 0.55 s. What impulse does the rough patch of ice give her?

207. ## agebra 2 honors

subsitution with 3 equations (solve for x,y,z) x+y-2z=5 -x-y+z=2 -x+y+32=4

208. ## poetry

need help writing a narrative poem on soccer

209. ## Math

In 1 week, the hours worked by the 6 cashiers at buy and fly were 20,20,29,48,52, and 56. Would using the mean or the median number of hours encourage a person who wants at least 35 hours per week to apply for a job at buy and fly? Explain?

210. ## Economics

1. Using AD/AS, describe the short-run and long-run effects of an increase in the money supply on the equilibrium level of production and the price level. Be sure to explain what happens to Total Expenditures (using the 3 effects of spending changes as a

211. ## ENGLISH

IN " THE BELLS," POE USES ____- TO CREATE A STRONG EFFECT. A) ASSONANCE B) INTERNAL RHYME C) ONOMATOPEIA C) COUPLETS. MY ANSWER IS (C). AM I CORRECT?

212. ## calculus

In February, 2002, each episode of "Becker" was typically seen in 8.3 million homes, while each episode of "The Simpsons" was seen in 7.5 million homes. Your marketing services firm has been hired to promote Bald No More, Inc.'s, hair replacement process

214. ## Chemistry

calculate the mass of silver nitrate present in 10mL of a 0.5M solution. will someone show me how to do this because i have no idea :(

215. ## trig

simplify: (2sin(2pie/7))/(3cos(3pie/14)

216. ## Chemistry

calculate the theoretical yield for silver

217. ## physics

if you take a 1 liter bottle of water out of the refrigerator at just above 0 celsius., how much heat will it take to raise the water to 90 celsius, so you can make tea out of it.

218. ## precalc

solve x/x^2-4 - 1/x+2=2

219. ## Chemistry

determine how much copper you will use. based on the mass of silver nitrate, calculate how much copper will you need to ensure copper is the excess reactant. you need to use 300% excess copper. Help me please!

220. ## Geometry

Line AB (0,0) is perpendicular to line BN (3,4) in the diagram at the right. Angle B is a 90 degree angle. What are the coordinates of point N?

221. ## Science

How many electrons in the first free levels of silicon

222. ## Chemistry

how much silver can you expect to isolate from 10mL of a 0.5 solution of silver nitrate. please help i would really appreciate it

223. ## chemistry

how many atoms of oxygen are contained in 0.662 mol of magnesium carbonate?

224. ## English

What would u like to see if u visit a firehouse.

225. ## math

There are 57 students in class of 6th and 7th graders. There are twice as many 6th graders. How many 6th graders?

226. ## algebra

What is the answer to this problem? I cannot get it. 10m - 2/5 = 9 3/5.

227. ## math

What is the scientific notation of 200,400

228. ## physics

Two objects of mass 1.00 × 103 kg each are a distance of 4.00 m from each other. If the center of one mass is regarded as being at the origin of the x-axis, and the other is centered at 4.00 m along the x-axis, what is the magnitude of the gravitational

229. ## calculus

Calculate f" for f(x)=g(e^(2x)), where g is a function defined for all real numbers & g admits second order derivative.

An oscillator with a mass of 281 g has a speed of 119.1 cm/s when its displacement is 2.80 cm and 34.2 cm/s when its displacement is 7.80 cm. What is the oscillator's maximum speed (in m/s)?

231. ## calculus

Prove that xcosx< sinx for 0

232. ## Ethics in counseling

Two foundational definitions related to counseling ethics and legal issues. Then analyze how each term is reflected in ethical best practice including working with clients from diverse background

233. ## physics

A 220lb worker loses 8 pounds of sweat during the day. All of the sweat evaporates. How much heat will he lose through evaporation? (Hint. Convert all measures to metric)

234. ## English

Please help me with English grammar, especailly punctuation on the following sentence (Thanks in advance): It is essential that we have a complete, itemized up-to-date bill, whether paid or not, for use at the evidence deposition.

What a steal of a Deal! Hunter went to TV City to buy a new TV. When he got there, he found that the manager was offering a 25% discount on every TV in the store. The one Hunter wanted was last year's model so he got an additional 10% discount on his

What a steal of a Deal! Hunter went to TV City to buy a new TV. When he got there, he found that the manager was offering a 25% discount on every TV in the store. The one Hunter wanted was last year's model so he got an additional 10% discount on his

237. ## physics

A cue ball (mass = 0.140 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick which applies an impulse of +1.60 N·s to the ball. The ball then slides along the table and makes an elastic head-on collision with a second

238. ## science

Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard

Megalodon Lives Angler went fishing and caught a monster of a fish! The head of the fish was 10 feet long. The length of the tail was equal to the length of the head plus half of the body. The body was as long as the head and the tail together. What was

240. ## geometry

a car traveling at 30 meters per second begins to slow down at a constant rate. after 2 seconds its velocity is 16 meters per second. write an equation that represents the cars velocity v after t seconds

241. ## geometry

Rectangle ABCD BC= 20 DC= 36 Rectangle EFGH FG= 30 HG= 52 how can i prove their not similar

242. ## physics

A rocket in outer space with a velocity of 12,000 m/s. How long will it take to travel 3,000,000 meters?

243. ## Site not working correctly/Physics

I posted a question a couple of days ago which was answered by DRWLS - thank you. Unfortunately I am unable to read the guidance provided as the typing is obscured by the adverts down the right hand side of the page. Look forward to replies. Thanks Mike

244. ## Physics

How do you calculate the phase constant in degrees given amplitude and frequency?

245. ## Algebra 2

Solve by completing the square. a² - 2√(3a) + 2 = 0 Solve for x. I don't know if you can use completing the square for this problem. ax^n + b = 0

asked by Solve by completing the square
246. ## chemistry

calculate the theoretical mass (g) of hydorgen chloride formed in the reaction of sulfuric acid (2.00 mol) with sodium chloride (150g) 2NaCl(s) + H2SO4(aq) = 2HCl (g) + NaSo4(S)

247. ## physics

The distance between two telephone poles is 59.0 m. When a 1.00 kg bird lands on the telephone wire midway between the poles, the wire sags 0.200 m. draw a free-body diagram of the bird. (do this on paper. your instructor may ask you to turn in this work.)

248. ## algebra rational numbers

compare < > = 1) - 1/7 -6/7 i got : < 2) -3/4 -3/8 i got: < 3) - 1/2 - 2/10 i got : > 4) - 3/4 -1 i got: < 5) - 1/2 - 5/6 i got: < 6) -4/5 -1/3 i got: > 7) 5.2 > -8.3 8) -6.5 > 6.2 9) -4.9 > -4.3 10) 1.09 < -1.90 11) -1.22 < -6.5 12) -10.2 < -10.23 are

249. ## math

compare and contrast the perpendicular bisectors, medians, and altitudes of a triangle

250. ## maths

If y= e(power x) + e(power -x)/2 when y =1

251. ## math

classify triangle ABC by its sides if side AB=6x, side AC=4x+6 and side BC=8x+3. the perimeter of triangle ABC is 63.

252. ## calculus

Evaluate the integral ∫ x/(x+1)^2+4 dx

253. ## maths

If y= e(power x)+ e(power -x)/2,find x when y = 1

254. ## math

to find the length of a side of a triangle b=8 and c=10 then a=?

255. ## Physics

Approximately how long does it take for an oxygen molecule to diffuse across the interior of a cell that is 230 ì m in diameter?

256. ## Math

x^3+2x^2-x=2 Find the real number of solutions of the equation

257. ## Healthcare finance

Milwaukee Surgical Supplies, Inc., sells on terms of 3/10, net 30. Grosee sales for the year are \$1,2000,000 and the collections department estimates that 30% of the customers pay on the tenth day and take discounts, 40% pay on the thirtieth days, and

258. ## Chemistry

You weigh out 196.07mg ferrous ammounium sulfate (FW 392.14) to prepare 250mL of solution which is 0.002M with respect to that compound. The salt is quantitatively transferred into a 250mL volumetric flask and 8mL of 3M H2SO4 is added and then diluted to

259. ## Physics

A 103.0 g mass attached to a horizontal spring oscillates at a frequency of 2.52 Hz. At t = 0 s , the mass is at x = 6.31 cm and has a velocity of -11 cm/s. Determine the phase constant in rad. Determine the total energy in J. Determine the position (in

260. ## Math

Find the real-number solution of the equation. 3x^7 = 81x^4 I got this far... 3x^7 - 81x^4 = 0 x^4 (3x^3 - 81) = 0

261. ## criminal investigations

do the objectives of a criminal investigation change with the type of investigation

if you divide this number by 2 you will get 3 multiplied by 6. Subtract 3 groups of 3 and you will get 3 multiplied by 9. I am so confused trying to help my 8 year old figure this out i have come up with 9 then 36 then 0

263. ## science-biology

I'm pretty sure the answer is A, am I correct? Natural selection tends to A) increase the frequency of characteristics that enhance survival and reproduction. B) decrease the number of individuals in any given population. C) lead to an increase in genetic

264. ## Chemistry

If 42.8 L of helium gas is collected at a temperature of 277K and has a mass of 4.84 grams, what is the pressure of the sample in torr?

265. ## MATH

HARRIET BOUGHT CHRISTMAS CARDS. SHE BOUGHT 1 BOX WITH 15 CARDS FOR \$18.00, 1 BOX WITH 12 CARDS FOR 20.00, AND 2 BOXES WITH 10 CARDS FOR \$8.00 EACH. WHAT WAS THE AVERAGE PRICE SHE PAID PER CARD?

266. ## Qoutes

Hi, I need some qoutes on how faculty members making a great difference to the school.

267. ## statistics

johns scores are 75,83,74, 75,98,63,83, and 55. if he scores a 75 on his next test, which measures do not change(mean, median, and mode)

268. ## Physics

The space shuttle has a weight 2.00 x 10^7 N. The shuttle is accelerated upward at a rate of 5.50 m/s^2. What is the mass of the shuttle? What is the thrust (force) of the combined engines? What is the magnitude of the net force applied to the space

269. ## Chemistry

What is the activation energy for a simple A->B fist order type of reaction with the following rate constants at different temperatures? Temp rate constant (k) 310K 1.77 x 10-1s-1 480K 3.22 x 10^2s-1

270. ## socials

how did automobile culture change neigbourhoods? what businesses develop because this automobile culture? and this in 1950's i think. i write it change neigborhods by closing corner grocery stores and building of large new supermarkets. the shopping mall

Can someone please read this and check if my grammar is correct? Also, is there a protagonist or antagonist in the story? Thanks in advance! The waters were calm today so when I heard a splash as loud as a tarpon, I knew it wasn’t pelican. I sped toward

272. ## algebra compare rational numbers

compare < > = 1) - 1/7 -6/7 i got : < 2) -3/4 -3/8 i got: < 3) - 1/2 - 2/10 i got : > 4) - 3/4 -1 i got: < 5) - 1/2 - 5/6 i got: < 6) -4/5 -1/3 i got: > 7) 5.2 > -8.3 8) -6.5 > 6.2 9) -4.9 > -4.3 10) 1.09 < -1.90 11) -1.22 < -6.5 12) -10.2 < -10.23 are

273. ## Math

How do you factor 49t6 - 4k8?

274. ## socials

what effect tv have on many individuals buying habits in post-war period? what effect it have today? it encourage people to buy more products. youngsters demanded sweetned cereals, barbie dolls, davy crocket hats, and many other advertised goods. effect it

275. ## calculus

given the function f(x)=x^3 defined for 0

276. ## physics

The temperature of 2.7 moles of an ideal gas is 471 K. How much work does the gas do in expanding isothermally to 3.7 times its initial volume?

277. ## science

are there any current or new treatments available for epilepsy?

278. ## MATH

SUZIE HAD TO WRAP A TRUCK,A CAR, A BUS AND A TRAIN. IN HOW MANY DIFFERENT ORDERS CAN SHE WRAP THESE PRESENTS?

279. ## Physics

In 35.0 s, a pump delivers 0.574 m3 of oil into barrels on a platform 25.5 m above the intake pipe. The oil's density is 0.820 g/cm3.

280. ## Physics (balancing one chemical equation)

Hi :), Please help me balance this equation I would really appreciate it! :) CS2(g)+ O2(g)----> CO2(g)+ S2O4(aq)+HEAT Thank you in advance! :)

281. ## algebra

Jenn will use 18 connecting cubes to make a model of a park. The model will b in the shape of a rectangle and will have the height of one cube. In how many different ways can Jenn make the model of the park ?

282. ## english

Punctuate the sentences and underline the explanatory words. Use the editing guide below. 19 mistakes heath i want to show you how to change a flat tire said dad youll be old enough to drive soon and this is a skill youll need to know you don't want to be

283. ## socials

what life like for many teens in post war period? present answer under following headings: A) independence B) styles C) music D) teens as "target market" Independence for this i think they only have ample leisure time, more money to spend from part-time

284. ## math

Find the coordinates of th vertex and write the equation of the axis of symmetry given the function f(x)=-x^2-3x-2.Is the vertex a maximum or a minimum?

285. ## math

Read the problem. Explain why A cannot be the correct answer choice. Then choose the correct answer. Which fraction is not equivalent to the others? A 2/8 B 1/4 C 6/18 D 3/12

286. ## math

So if 2142.45 divided by 2000 which equals to 1.071225 and I am try to find the rate from that it would be 1.03 which should be 3% or 3.3%?

287. ## math

joan has 2 similar rectangular shaped pieces that she is using for her quilt. one has the width of four inches and a lenghth of 6 inches and the other has a width of 6 inches. what is the perimeter of the larger rectangualar piece?

288. ## Social Studies 7R

What does hardships means???? Because this question is What hardships did the pilgrims face??? I also need help on that question

289. ## economic

a)by use of diagrams where appropriate differentiate between Marshallian and Hicksian demand curves. b)The utility function for a consumer is given as follows: U=X0.3Y0.7. i)derive the Hicksian demands for X and Y. ii)give economic interpretation of the

290. ## Math

The roots of the equation 4x^2+4x-5 = 0 can be written in the form x = -1+-*SqrtA/2 The value of A is, how exactly do I do this?

291. ## History: Vietnam War

I need key FEMALE figures in the anti-war movements for the vietnam war. If you can add detail that would be great.

292. ## algebra

find the size of each 5 payments made at the end of each year into a 6% rate sinking fund which produces 76000 at the end of 5 years

293. ## Physics

14. You throw a 2 kg. Stone straight up into the air with a velocity of 6m/s. What is the max height of the stone and the total time it takes for it to come back down?

294. ## Math

y = 0.005x^2-0.801x+46.928 ^ Using that model above, how di I determine the cost per km to the nearest tenth of a cent, at a speed of 70 km/h? I think I use a graphing calculator for this, and since speed is the x value I probably have to insert in 70.

295. ## Physics

14. You throw a 2 kg. Stone straight up into the air with a velocity of 6m/s. What is the max height of the stone and the total time it takes for it to come back down?

296. ## social studies

Predict what might have happened if the Maya civilization had continued into the present day. Explain.

297. ## Physics

14. You throw a 2 kg. Stone straight up into the air with a velocity of 6m/s. What is the max height of the stone and the total time it takes for it to come back down?

298. ## Science 7R

Explain the importance of the cell nucelous in the life of a cell? I need help, I just have to write 1 or 2 sentences to answer this qs.

299. ## algebra

Suppose Mary deposits \$200 at the end of each month for 30 years into an account that pays 5% interest compounded monthly. How much total money will she have in the account at the end?