Questions Asked onJanuary 27, 2014

1. MATH CHECK ANSWERS

CHECK THESE MATH ANSWERS PLEASE 1. There are 18 boys and 12 girls in a math class.what is the ratio of girls to total students? A.18:30 B.12:30(I PICK THIS) C.30:12 D.30:18 2.which of the following ratios are equivalent to 6:9? Choose all that apply. A.3:2

2. Help

Read the following scenario and determine the willing participant. Eboni’s friend, Margo, was eager to tell her about the new friend she met online. She began chatting with Aaron on a social networking website and found out that they had a lot in common.

3. Chemistry

Given the reactant side of the total ionic equation for the neutralization reaction of ammonium hydroxide (NH4OH) with hydrochloric acid (HCl), write the total ionic equation (also known as the complete ionic equation) by entering both the reactant and the

4. Chemistry

Assume that the complete combustion of one mole of ethanol to carbon dioxide and water liberates 1370 kJ/mol (?G°\' = –1370 kJ/mol). If the energy generated by the combustion of ethanol is entirely converted to the synthesis of a hypothetical compound

5. Algebra

Is the following statement always, never, or sometimes true? A number raised to a negative exponent is negative. A. always B. never C. sometimes Sometimes?

6. Calculus

the legs of a right triangle have lengths a and b satisfying a + b =10. which values of a and b maximize the area of the triangle?

7. algebra

the total was 29.00 after adding a 4,00 tip to the bill for a family of five, each of whom ordered a hot dog. what was the price of a hot dog?

asked by help pls!
8. Algebra 1

A student scored 78 and 92 on his first two quizzes. Use a compound inequality to find the possible values for a third quiz score that would give him an average between 80 and 85, inclusive. (1 point) 78

9. physics

A car is being pulled out of the mud by two forces that are applied by the two ropes shown in the drawing. The dashed line in the drawing bisects the 30.0° angle. The magnitude of the force applied by each rope is 2900 newtons (N). (a) How much force

10. math---help! 1 question

pls help me! 21. Write an equation with a variable on both sides of the equal sign that has infinitely many solutions. Solve the equation and explain why it has an infinite number of solutions. (3 points)

11. Chemistry

I need help with naming two complex ions 1) [Fe(H2O)4C2O4]+ 2)[Fe(C2O4)3]3-

12. Math

What should you say if you see a tall, wrought-iron tower in Paris?

1. How are impulse and momentum related? (Points : 1) Impulse is the change in momentum of an object. Momentum is the change in impulse acting on an object. Impulse and momentum are always equal in magnitude. Impulse and momentum are the same thing.

14. Algebra

Write in standard notation. 6.12 X 10^3. A. 6120 B. 612 C. 61,200 D. 61.2 A Simplify and write in scientific notation. 0.5(8 X 10^5). A. 8 X 5^5 B. 4 X 5^5 C. 8 X 10^5 D. 4 X 10^5 D

15. physics

a block with a velocity 4m/s slides 8m across a rough horizontal floor before coming to rest.the coefficient of friction is.

16. Math 5th

Val walks 2 3/5 miles each day. Bill runs 10 miles once every four days. In 4 days who covers more distance?

17. Finance

Kim Davis is in the 40% personal tax bracket. She is considering investing in HCA (taxable) bonds that carry a 12% interest rate. a. What is her after-tax yield (interest rate) on the bonds? b. Suppose Twin Cities Memorial has issued tax exempt bonds that

18. vectors

In an attempt to escape his island, Gilligan builds a raft and sets to sea. The wind shifts a great deal during the day, and he is blown along the following straight lines: 2.5 km 45° north of west; then 4.70 km 60° south of east; then 5.1 km straight

5. A 1,600 kg car is moving south at 24 m/s. What is its momentum? (Points : 1) 66 kgm/s south 66 kgm/s north 38,000 kgm/s north 38,000 kgm/s south Question 6. 6. The velocity of a 150 kg cart changes from 6.0 m/s to 14.0 m/s. What is the magnitude of the

20. Algebra

Which expression isn't equal to 125? A. 5((5^3)/(2/5))^2 B. ((5^3) / (5^4))^-3 C. (5^-2)/(5^-5) D. 5((5^5)/(5^3)) A What is the correct simplification of (5.4 X 10^12)/(1.2 X 10^3) written in scientific notation? A. 4.5 X 10^7 B. 4.5 X 10^9 C. 45 X 10^6 D.

21. physics

An electric heater used to boil small amounts of water consists of a 25-Ω coil that is immersed directly in the water. It operates from a 60-V socket. How much time is required for this heater to raise the temperature of 0.50 kg of water from 29° C to

22. Algebra 1

Eric and Mark were at a ball game and visited the concession stand. They each got a hamburger, and Mark got lemonade and some cotton candy. Eric had a coupon for \$2 off the cost. Mark paid the rest, which came to \$14.50. Cotton candy costs \$5, and a

23. Algebra 1

Tell whether the sequence is arithmetic. If it is, what is the common difference? -12, -7, -2, 3,… (1 point)

24. Algebra

Is the following statement always, never, or sometimes true? A number raised to a negative exponent is negative. always never sometimes sometimes?

25. science

joey drives his car 7 kilometers north. he stops for lunch and then drives 5 kilometers south. what distance did he cover?

26. Physics

A single electron orbits a lithium nucleus that contains three protons (+3e). The radius of the orbit is 1.76*10^-11m. Determine the kinetic energy of the electron.

27. Physics

What is the net force exerted by these two charges on a third charge q 3 = 45.0nC placed between q 1 and q 2 at x 3 = -1.145m ? Your answer may be positive or negative, depending on the direction of the force. Express your answer numerically in newtons to

28. gifted talented science

pls, help! this is hard and confusing! 1. How does runoff affect a community? (1 point) Runoff can supply new homes and businesses with the water that they need. Runoff can provide the water that fish in streams and lakes rely on. Runoff can prevent

29. anon

In a case study where the maximal rates of oxygen consumption (in ml/s) for nine species of wild African mammals were plotted against body mass (in kg) in a log-log plot, it was found that the data points fell on a straight line with the slope

30. Math

Select the measure of the complement or supplement of the angle. If there is no complement or supplement, select no complement or supplement. 55.1° (1 point) 124.9° 119.9° 49.9° no complement or supplement

31. Physic

How far apart should two protons be if the electrical force of repulsion is equal to the weight (attraction to the Earth) of one of the protons?

32. Chemistry

Water is composed of 11.2% hydrogen and 88.8% oxygen. what mass of water contains 50.0g of 0xygen?

33. Physics

A stationary bicycle is raised off the ground, and its front wheel (m = 1.70 kg) is rotating at an angular velocity of 21.9 rad/s (see the figure). The front brake is then applied for 1.35 s, and the wheel slows down to 4.47 rad/s. Assume that all the mass

34. Physics

In Cambridge, England, a seconds pendulum is 0.9942 m long. What is the free-fall acceleration in Cambridge? (Use 4 significant figures in your answer.)

35. Math

One angle of a triangle measures 100. the other two angles are in a ratio of 3:5. What are the measures of those two angles?

36. physics

If the total positive charge is Q = 1.62×10−6C , what is the magnitude of the electric field caused by this charge at point P, a distance d = 1.53m from the charge? (Figure 1) Enter your answer numerically in newtons per coulomb.

can someone help me to correct it? this message address to international employee. Message intend to announce a revenue drop caused by intensive competitive pressure Howdy guys! Shouldn’t surprise anyone that we took a beating this year, given the insane

38. physics

according to recent typical test data, a Ford Focus travels 0.23 mi in 19 seconds, starting from rest. The same car, when braking from 59.0mph on dry pavement, stops in 141 ft. Assume constant acceleration in each part of its motion, but not necessarily

39. physics

a projectile is ejected from a 25 m high tower with a velocity of 40 m/s at an angle of 30 degrees to the horizontal first on Earth and then on Mars. What is the ratio of the time taken to hit the ground on Mars compared to Earth? (Assume gravity on mars =

40. Grammar

Tell whether the underlined word in each sentence is reflexive or intensive. 1. Jill read (herself) a story after supper. 2. Her parents (themselves) had encouraged her. 3. They said, "If you children want to play, you will have to see to it (yourselves).

41. Algebra

Simplify. (mn^-4)/(p^0q^-2) A. (mq^2)/(n^4) B. (mp)/(n^4) C

42. Plz help. :(

7. Select the skill-related component which is defined as the ability to combine strength and speed while you are moving. balance coordination *** power speed 8. At the paintball field, Wynonna is always the first one on her team to be hit with the

asked by Princess Anna
43. Physics

A meter stick balances at the 50.0-cm mark. You tie a 20N weight at the 20cm mark. Where should a 30N weight be placed so the meter stick will again be balanced?

44. Algebra

Simplify and write in scientific notation. (9 X 10^-3)^2 A. 8.1 X 10^-5 B. 81 X 10^-4 C. 81 X 10^-3 D. 8.1 X 10^-6 ? Evaluate 1/2a^-4 b^2 for a = -2 and b = 4. A. 2 B. 1/2 C. 3 D. 4 B

45. Chemistry

A 1.00% by mass MgSO4 solution has a freezing point of -.192°C. Water has a Kf of 1.86 (KxKg)/mol. a.) Estimate the van’t Hoff i factor from the data. b.)Determine the total molality of all solute species. c.) Calculate the percentage dissociation of

46. Math

Meagan will be using a moving truck to move her belongings to another location. She is trying to decide from which company to rent the moving truck: • Option 1: Truck A offers a flat fee of \$25 and \$.50 per mile. • Option 2: Truck B offers a flat fee

47. physics

Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 5.5 m/s2 for 4.9 seconds. It then continues at a constant speed for 6.7 seconds, before applying the

48. chemistry

if a coin with 3.0 cm diameter, 0.2 cm thickness weighs 10.377g, what are its volume and density?

49. MATH CHECK ANSWERS

CHECK THESE MATH ANSWERS PLEASE 1. There are 18 boys and 12 girls in a math class.what is the ratio of girls to total students? A.18:30 B.12:30(I PICK THIS) C.30:12 D.30:18 2.which of the following ratios are equivalent to 6:9? Choose all that apply. A.3:2

50. Chemistry

Trichloroethane, C2H3Cl3, is the active ingredient in aerosols that claim to stain-proof men's ties. Trichloroethane has a vapor pressure of 100.0 mm Hg at 20.0 C and boils at 74.1 C. An uncovered cup (1/2 pint) of trichloroethane (d=1.325 g/mL) is kept in

51. Algebra

Simplify (4xy^2)^3 (xy)^5. A. 64x^8 y^11 B. 64x^15 y^30 C. 12x^2 y^11 D. 12x^8 y^11 A Simplify (2t^-3)^3 (0.4r)^2. A. 3.2r^2 B. (1.28r^2)/(t^-6) C. (1.28r^2)/(t^9) D. (0.8r^2)/(t^-6) C

52. PE-check my answers

7. Select the skill-related component which is defined as the ability to combine strength and speed while you are moving. balance coordination *** power speed 8. At the paintball field, Wynonna is always the first one on her team to be hit with the

asked by Princess Anna
53. Physics

A pilot flies a plane at a speed of 600 km/h with respect to the surrounding air. A wind is blowing to the northeast at a speed of 100 km/h. In what direction must the plane be aimed so that the resulting direction of the plane is due north?

54. Algebra (Word Problem)

Here's the word problem: You have a coupon for \$50 off your camera purchase of \$100 or more at Camera World. Write a function relating a camera's purchase price after coupon, y, to the retail price, x. Give the domain of this function. Here is what I have

55. physics

Vector has a magnitude of 122 units and points 37.0 ° north of west. Vector points 64.0 ° east of north. Vector points 17.0 ° west of south. These three vectors add to give a resultant vector that is zero. Using components, find the magnitudes of (a)

56. Physics

An alpine rescue team is using a slingshot to send an emergency medical packet to climbers stranded on a ledge. (height=252 m, horizontal distance=416 m, landing angle= 75° below the horizontal). What should be the launch speed from the slingshot? What is

57. Math

Steve can run 3.5 miles in 30 minutes. If Steve increases his rate by 1/2 mile per hour, how far will he run in 2 hours?

58. Chem

How do I determine the percent of a compound in an impure sample?

59. Physics

An alpine rescue team is using a slingshot to send an emergency medical packet to climbers stranded on a ledge. (height=252 m, horizontal distance=416 m, landing angle= 75° below the horizontal).

60. Chemistry

1.A patient needs 2.10×10−2g of a sulfa drug. There are 8.00mg tablets in stock. How many tablets should be given? Really need help with this! :/ Thanks -MC

61. Science

a 67 gram chunk of ice (Heat of Fusion = 6.0 kJ/mol) in a beaker immersed in a water bath. To produce just enough heat to melt the ice, how many moles of solid NaOH (Heat of Solution = -445.1 kJ/mol) must be added to this system to just melt the ice.

62. math

It says sam test scores for the making period were 60,89,83,99,95,60 Suppose that sams teacher decided to base the marking period grade on the mean. What grade would sam earn? Do you think this is a fair grade explain your reasoning?

63. ms1998

On a windless day, a bird can fly at a constant 10 m/s. It flies 6.0km east and then home again. How much time does the round trip take? I keep getting 600 seconds, but my teacher still tells me it's wrong.

64. physics

What is the magnitude of the electric field a distance 3.0mm from an electron? Express your answer to two significant figures and include the appropriate units

65. physics

Three charges are fixed in the x−y plane as follows: 1.5nC at the origin (0, 0); 2.6nC at (0.65m , 0); –1.8nC nC at (0, 1.50m ). Find the force acting on the charge at the origin. Express your answers using two significant figures. Enter the x and y

66. Consumer Math

1. If you divide an inheritance of \$45,600.00 among 22 heirs, each heir will receive A. \$2,073.72. B. \$2,072.73. C. \$207.27. D. \$2,027.27. I choose B

67. Math

A carpenter has several boards of equal length. He cuts 3/5 of each board. After cutting the boards the carpenter notices that he has enough pieces left over to make up the same length as 4 of the original boards. How many boards did the carpenter start

1.state the mathematical relationship between the net force acting on an object and the object's change in momentum. 2state the mathematical relationship between the net force acting on an object and the time taken to change the object's momentum

69. physics

A 6.30kg block is pushed 9.50m up a smooth 35.0∘ inclined plane by a horizontal force of 77.0N . If the initial speed of the block is 3.15m/s up the plane. What is the initial kinetic energy of the block, the work done by the 77.0N force, the work done

70. Physic

A small glass bead that has been charged to 4.4 nC? What is the strength of the electric field 2.0 cm from the center of the bead? Please show all work

71. Math

Chad buys peanuts in 2 pound bags. He repackages them into bags that hold 5/6 pound of peanuts. How many 2 pound bags of peanuts should chad buy so that he can fill 5/6 pound bags without having any peanuts left over?

72. PHYSICS

Two identical teflon rods are 10 centimeters long and rubbed with fur so that they each have a total negative charge of 20 microCoulombs that is uniformly distributed along their length. They are arranged along the same axis, with their ends 5 centimeters

73. ela

I'm doing an essay on how author's language expresses change in character. First, I need to know how David changed from a particular event in the story David's Haircut by Ken Elkes. I want to say that David changed from the haircut or that David changed

74. Calculus

integrate (pi/6 & 0) (1-cos3t)(sin3t)dt

75. Math

Here is the problem: Christopher orders a three topping pizza for \$15.25, and a 5 topping pizza for \$17.75. Write and solve a system of linear equations to find the price of a plain cheese pizza (no toppings) and the cost of each topping. I used the method

76. Physics

A baggage carousel at an airport is rotating with an angular speed of 0.397 rad/s when the baggage begins to be loaded onto it. The moment of inertia of the carousel is 2440 kg·m2. Ten pieces of baggage with an average mass of 16.5 kg each are dropped

77. physics

A jogger travels a route that has two parts. The first is a displacement of 2.15 km due south, and the second involves a displacement that points due east. The resultant displacement + has a magnitude of 3.95 km. (a) What is the magnitude of , and what is

78. algebra

An oil painting is 16 years older than a watercolor by the same artist. The oil painting is also three times older than the watercolor. How old is each? Identify a variable, set up an equation, and solve.

79. Finance - Annuities

Natasha plans to deposit \$4,000 per year in her account for each of the next 4 years. Thereafter, she expects to deposit \$1,500 per year for another 4 years. All deposits are made at year-end. Interest rates are expected to be 8 percent for the next 2

80. PHYSICS

Two identical teflon rods are 10 centimeters long and rubbed with fur so that they each have a total negative charge of 20 microCoulombs that is uniformly distributed along their length. They are arranged along the same axis, with their ends 5 centimeters

81. Physics

Find the length of a pendulum that oscillates with a frequency of 0.37 Hz.

82. physics

Three charges are fixed in the x−y plane as follows: 1.7nC at the origin (0, 0); 2.3nC at (0.60m , 0); –2.0nC at (0, 1.20m ). Find the force acting on the negative charge. Express your answer using two significant figures. Enter the x and y components

modern mexico check answers 7. Which of the following was largely responsible for the Mexican Revolution? A. separation from Spain B. the overthrow of Maximillian(I PICK THIS) C. widespread poverty D. lack of women's rights 9.Why did the Mexican Revolution

84. Physics

A baggage carousel at an airport is rotating with an angular speed of 0.397 rad/s when the baggage begins to be loaded onto it. The moment of inertia of the carousel is 2440 kg·m2. Ten pieces of baggage with an average mass of 16.5 kg each are dropped

85. Consumer Math

15. The quotient of 794.1 divided by 7.61, expressed to two decimal places, is A. 104.35. B. 95.83. C. 1,043.50. D. 786.49. A

86. finance

Coogly Company is attempting to identify its weighted average cost of capital for the coming year and has hired you to answer some questions they have about the process. They have asked you to present this information in a PowerPoint presentation to the

87. socialstudies

can anyone please answer these 5 before i scratch my brain out.i did the rest but these i couldn't get What marked the beginning of agriculture in the Americas ? A.Native people began raising goats. B.The hoe was invented. C.Native people began growing

88. Writing (Writeacher and Ms. Sue)

Write a description of a scene in the story "The Birds" by Daphne Du Maurier as it would look to a bird flying overhead. What do you think? I wrote the description about the scene when the birds are entering the house through the chimney. "The bright

89. Physics

A train moving at a constant speed of 61.0 km/h moves east for 35.0 min, then in a direction 50.0° east of due north for 10.0 min, and then west for 49.0 min. What is the average velocity of the train during this run? What is the magnitude of that

90. physics

Two small charged balls have a repulsive force of 0.20N when they are separated by a distance of 0.90m . The balls are moved closer together, until the repulsive force is 0.58N . How far apart are they now? Express your answer to two significant figures

91. maths

A coin box contained some twenty-cent and fifty-cent coins in the ratio 4 : 3. After 20 twenty-cent coins were taken out to exchange for fifty-cents coins of the same value and put back in the box, the ratio of the number of twenty-cent coins to the number

92. math

An oil painting is 16 years older than a watercolor by the same artist. The oil painting is also three times older than the watercolor. How old is each? Identify a variable, set up an equation and solve. thanks

93. physics

Three deer, A, B, and C, are grazing in a field. Deer B is located 63.4 m from deer A at an angle of 50.8 ° north of west. Deer C is located 76.7 ° north of east relative to deer A. The distance between deer B and C is 96.7 m. What is the distance

94. Consumer Math

2. Express the fractions 1/2, 3/16, and 7/8 with an LCD. A. 1/4, 3/4, 7/4 B. 1/32, 3/32, 7/32 C. 4/8, 6/8, 14/8 D. 8/16, 3/16, 14/16 A

95. L.A.

What can you predict about the poem by previewing the title, subtitle, and first line of the poem “In Response to Executive Order 9066”? It will be a letter to the Japanese-American citizens in which they are told they must leave their homes. It will

96. Algebra

Simplify 5^-1(3^-2) A. 45 B. 1/45 C. 15^-3 D. 15^2 B

97. physics

A tungsten wire has a radius of 0.077 mm and is heated from 20.0 to 1205 °C. The temperature coefficient of resistivity is α = 4.5 10-3 (C°)−1. When 110 V is applied across the ends of the hot wire, a current of 1.3 A is produced. How long is the

98. Math

the first aircraft has 47 more seats than the second aircraft. the third aircraft has 54 fewer seats than the second aircraft. if their total number of seats is 401, find the number of seats for each aircraft.

99. Algebra 1

Tell whether the lines for the pair of equations are parallel, perpendicular, or neither. Y=-4/5x+3 4x-5y=-15 (1 point) Parallel Perpendicular*** Neither Write an equation of a line that is perpendicular to the given line and that passes through the given

100. Algebra, URGENT!! HELP!

Rewrite the following as a perfect square: 144b^18

101. maths probability

The lifetime X of a bulb is a random variable with the probability density function: f(x)=6[0.25-(x-1.5)^2] when 1

asked by rupesh painkra
102. Physical Science

A 50.0-kg wolf is running at 10.0 m/sec. What is the wolf's kinetic energy? A) 5 J B) 500 J C) 5000 J D) 250 J E) 2500 J

103. math

Sam's car gets 20.2 miles per gallon, and her gas tank can hold 18 gallons of gas. How many miles can sam travel if she uses all of the gas in the tank? Please round to the nearest dollar. Estimate: Calculate:

104. Help_ Accounting

An invoice for product X totals \$1,200 and is dated July 6, 2000 with terms 2/10-60X. If the invoice is paid on September 3, 2000, what is the net amount of payment? A. \$912 B. \$1,152 C. \$1,176 D. \$1,200 D

105. math

One solution contains 20% acid and a second solution contains 50% acid. How many ounces of each solution should be mixed in order to have 60 ounces of a 30% acid solution?

106. Precalculus

Let f(x)=e^x. Compute the average rate of change over the interval [ln3, ln4].

107. math

two trains leave Austin one train going north at 80 mph and one going 60mph how long will it take the two trains to be 420 miles apart?

108. biology

are theories temporary ideas and i don't understand the dictionary def

109. Consumer Math

11. You purchase a shirt for \$8.50. There is a 6% sales tax. Your total cost will be A. \$8.98 B. \$8.55 C. \$13.60 D. \$9.01 I choose B

110. SS

5.How did the United States change as it became more economically independent? (Select TWO) Population decreased as trade with other nations was stifled. The growth of factories and trade led to the growth of American cities. Congress chartered the Second

asked by Princess Anna

1. What marked the beginning of agriculture in the Americas? A. Native people began raising goats. B. The hoe was invented. C. Native people began growing maize.(I PICK THIS) D. The Spanish arrived. 2. Aztec aqueducts were an important accomplishment

112. childcare

A preschool child in your class draws a square that's divided by lines. This shape is known as a

113. social

what episode is kourtney and kims fight in miami? I know it was on kourtney and kim take miami but I don't know which episode I need this for a social analysis I have tried looking for it in episode summaries but I cant seem to find it. I know there was a

114. 5th Grade Math

Question: Each face of a prism other than the bases is what two-dimensional shape? Please help I'm really confused and need help.

115. Quick math help

Can someone please check my math Hw? Thank you!! Solve each system by elimination. 1. 8x+7y=-1 -9x-7y=2 I got (-1,1) 2. 4x+3y=1 -4x-7y=-13 I got (2,-2) 3. -7x-6y=-21 -x-6y=-3 I got (3,0) 4. -2x+3y=-16 -2x-5y=-16 I got (8,0) 5. -7x+2y=13 -14x+4=26 I got

116. chemistry

what is the freezing point depression of water, benzene, acetic acid, ethanol and clyclohexane?

asked by jarlyn jane ejares
117. Science: Discovering Magnetism

How is the strength of two magnetic poles related to the force between them?

118. Physic

a small sphere with a mass of 108.0 g is moving along the y-axis when it encounters an electric field of 5.0i N/C . If the sphere suddenly accelerates 13.0i m/s^2, what is the charge that it carries? Please explain

119. Physic

In the Coulomb force equation, does the magnitude of the force increase as the distance between the charged objects decrease ? Why or why not?

120. math

What is the area of a parallelogram that has a base of 3 1/2 cm and a height of 2 1/2 cm?

121. Chemistry

An electron transition in a single H-atom from n=3 to n=2 results in the release of a single photon. What is the wavelength of this photon in nanometers? How do I solve this?

122. Physics

A diver springs upward from a board that is 3.20 m above the water. At the instant she contacts the water her speed is 11.4 m/s and her body makes an angle of 68.7 ° with respect to the horizontal surface of the water. Determine her initial velocity, both

Write a description of a scene in the story "The Birds" by Daphne Du Maurier as it would look to a bird flying overhead.

124. math

It is claimed that 60 percent of households now subscribe to cable TV. You would like to verify this statement for your class in mass communications. If you want your estimate to be within 5 percent, with a 95 percent level of confidence, how large of a

125. English

In this section of the final, revise the sentences provided to correct the grammar errors indicated. (In many cases there will be more than one correct alternative to the sentence provided; credit will be given for all correct answers.) Revise the

126. chemistry

A sample of nitrogen gas is confined in a 8.278 x 10-2 L container at 2.236 x 102 torr and 50 oC. How many moles of gas are present in the sample?

127. Algebra

Which is equivalent to (x^5 y^2)/(xy^2)? A. x^6 y^5 B. x^5 y C. x^4 y D. x^4 D

128. math

Sue buys 2 dozen roses. Of those roses 2/3 are red and the rest are white.how many white roses did she buy?

129. physics (clear answer)

A golfer hits a shot to a green that is elevated 3 m above the point where the ball is struck. The ball leaves the club at a speed of 16.0 m/s at an angle of 38.5° above the horizontal. It rises to its maximum height and then falls down to the green.

130. Maths

Daniel's watering can holds 6L of water when full. He fills his watering can 3 times from the bucket and then the bucket is empty. How much more waterdoes one full bucket hold than Daniel's full watering can? A 3L B 9L C 12L D 18L

131. Calculus

integrate (pi&0) sin t/(2-cost) dt

132. chemistry

why is it that protonated pyrone have a higher pKa than protonated acetone?

133. Physic

Is Coulomb's law consistent with Newton's Third Law? In particular, how do F^elec A-->B and F^elec B--->A compare in magnitude? in direction?

134. Physic

a small sphere with a mass of 108.0 g is moving along the y-axis when it encounters an electric field of 5.0i N/C . If the sphere suddenly accelerates 13.0i(i is the unit vector) m/s^2, what is the charge that it carries?

135. Statistics

The variance of the mathematical scores of a sample of 21 high school girls was found to be 100 and that of a sample of 25 high school boys was 169. Test the hypothesis that the scores of the high school boys are more varying that those of the high school

136. biology

similar abd difference between photosynthesis and cellulaR RESpiration

137. HELP- Accounting

An invoice for product X totals \$1,200 and is dated July 6, 2000 with terms 2/10-60X. If the invoice is paid on September 3, 2000, what is the net amount of payment? A. \$912 B. \$1,152 C. \$1,176 D. \$1,200

138. algebra

1. November 1: You start the month with \$1,234 in your account.

139. Algebra 1

An online camera retailer currently offers a 40% discount on cameras. Write a function relating a camera's purchases price, y, to the retail price, x. Give the domain of this function. I'm really stuck on this problem. Thanks so much for your help.

140. Math

I'm a odd number, actually both my numbers are odd. If you substract my ones digit from my tens digit the diffrence is four. And I am less than sixty. What number am I?

141. Writing and solving equations

The number of green balls is g. The number of red balls is 3 more than the number of green balls, and the number of blue balls is 7 more that the number of green balls. If the number of blue balls is 18, how many green balls are there?

142. Science

Why do you think the national weather service has standard conditions for measuring air temperature?

143. math

Factor completely, the expression 2x^2+6x-20 I did 2(x^2+3x-10) then it can go down to 2(x+5)(x-2) Is this correct? Thanks for checking my work

144. ela

Skim the article “Cruise Control” to find the name of the bumper sticker service found in Arlington, Texas. a) 1-866-2TELLMOM b) 800-4-MYTEEN c) Big Mother d) Dad's Eyes i cant find the article just give me the link and i will find it my self please

145. Consumer Math

3. The product of 7/16, 4/3, and 1/2 is A. 7/24. B. 21/32. C. 2 13/48. D. 7/12. I choose A

146. English

Can someone please help me check the grammar in the following sentences? 1) I would like to inform people about the danger (after effects?) of having a nuclear power station near our town 2) I hope you will listen to our advice. 3) Animal and plant species

147. Anatomy & Physiology

A person is having problems chewing. Which cranial nerve is most likely affected in this person? A. Accessory B. Trochlear C. Trigeminal D. Abducens

asked by Diana K
148. math

what is the base of a parallelogram with the height 6and 5 eighths feet and area of 26 and a half

149. Algebra

What would the solution to this system of equations be? y = x - 50 y = 0.6x I got (138.8, 83.3), but that doesn't seem right at all.

150. maths

x to the power of one and one over four divide by x to the power of one over four

151. Ms.Sue is this better?

In the article The String Theory, by David Foster Wallace, there were three writing techniques that I noticed Wallace used. First, I think Wallace was informative and explanatory. He explained why there are some professional tennis players who are unknown

152. Calculus

write and row reduce the augmented matrix to find the general solution. x + y - z = 7 2x - y - 5z = 2 -5x + 4y + 14z = 1 3x - y - 7z = 5

153. mathematics in english

What time wen car driving 90km/h in the distance of 11 700km?

154. Science: Bird Project

I'm doing a project about the Northern Oriole. It's a mini project. What's the difference between the Northern Oriole and the Baltimore Oriole?

155. subject/verb agreement

There is/are positive bowel sounds.

156. Math - Ratio or Proportion (I think??)

Hello, I'm looking for guidance on how to solve these two problems below. I think they are proportion or ratio problems, but I am not sure. 1. If 6 pounds of meat feeds 3 people for 5 days, how much meat is required to feed 5 people for 7 days? 2. If a

157. Math

At a certain construction site, there is a pile containing 55 tons of sand. Four trucks, each of which holds 11.4 tons of sand, are filled from this pile. How many tons of sand remain in the pile? A. 9.4 B. 16.2 C. 20.8 D. 32.2 E. 43.6

158. Psychology

Within each gene, elements of DNA are arranged in a particular order, forming a code that influences the synthesis of particular proteins. This code affects every aspect of the body, from its structure to the chemicals that keep it running. The above

159. math

Kim decided she want to put a continuous trim along the top of the walls around the 10 ft. by 10 ft. rectangular room. How long a piece of trim must she buy?

160. CHEMISTRY URGENT!!!!

An electron transition in a single H-atom from n=3 to n=2 results in the release of a single photon. What is the wavelength of this photon in nanometers? NEED ANSWER CUZ MINE ISNT WORKING

162. math

a quadrilateral has two angles that measure 88 and 62. the other two angles are in a ratio of 16:19. what are the measures of those two angles?

163. history

In England, _______ housed totally destitute people at public expense and resembled the conditions of the first _______.

164. Math

A book that is 13 in. tall is leaning against the edge of a wall. If the bottom of the book is 5 inches from the wall, how far up the wall is the top of the book?

165. organic chemistry

why is it that protonated pyrone have a higher pKa than protonated acetone?

Hi for my analysis on The String Theory by David Wallace Foster I had to discuss 3 writing techniques the author used and give an example. Can I please get it proofread? After reading the article The String Theory, by David Foster Wallace, there were three

2+square root 3 & 2- square root 3 Form equation ..

2+square root 3 & 2- square root 3 Form equation ..

169. physical

Finding the resultant in th x direction ,Rx and y for the following forces f1 =1,5N in the positive x direction

170. Help_ Accounting

A vendor reduces an item listed at \$140 on July 1st by 20%, and then reduces it another 25% on September 1st. What is the sale price of the good after the last reduction? A. \$77.00 B. \$84.00 C. \$92.00 D. \$108.50 A

171. HELP- Accounting

A baker makes 500 cream-filled eclairs at a cost of \$0.72 each. He estimates that 10% of the eclairs will be sold the following day at a reduced price of \$0.80 each. Find the marked price if the baker wishes to obtain a 75% markup on cost. A. \$1.27 B.

172. Help_ Accounting

A store receives \$400 cash after offering a chain discount of 10/10/5 on a good. What was the list price? A. \$492.20 B. \$519.82 C. \$533.33 D. \$612.00 B

173. English

Can someone help me think of a sentence that you can reverse the words like this? Betty danced wildly around twice. Twice around, wildly, danced Betty.

174. Physic

Two volleyballs, each of mass 0.300 kg, are charged by an electrostatic generator. each is attached to an identical string and suspended from the same point, as shown in Fiq.2. They repel each other and hang with separation 50.0 cm. The length of the

175. Algebra

Simplify (5s^-7)/(10s^-9)?

176. life orientation

what is life orientation?

177. Physic

if the force vector F elect A-->B is in the positive direction form the unit vector r A-->B , the unit vector must be multiplied by a negative number . where does this negative number come from in the Coulomb equation? Does this negative number indicate a

178. art

Context Concept Content Iconography Convention Media/Medium

3 < 4 – 2x

180. Health

If you have tiny white bumps on your lips, probably caused by frequent lip biting, how can you treat it? Please help

181. Language arts 7th grade (gapp)

Can someone help me create a conclusion on the topic "Should baseball players found guilty of using steroids be allowed in the Hall of Fame?". My opinion is that they shouldn't be allowed into the Hall of Fame if found guilty. What if have so far- Though

182. math

Louis has 7 1/2ft of red ribbon. How many red bows can he make using 3/4ft pieces of ribbon for each bow?

183. Math help

-7x+2y=13 -14+4y=26 Is this no solution? (0,0)

184. HELP- Accounting

A store receives \$400 cash after offering a chain discount of 10/10/5 on a good. What was the list price? A. \$492.20 B. \$519.82 C. \$533.33 D. \$612.00 A

185. Literature

In "The Birds" by Daphne Du Maurier, what important news is revealed through the broadcast?

186. Algebra 1

Write an equation in point-slope form for the line through the given point with the given slope. (-4,6);m=3/4 (1 point) y-6=3/4x+4 y-6=3/4(x-4)*** y-6=3/4(x+4) y+6=3/4(x+4)

187. IT WEB SYSTEMS

Provide a real-life application in which you manipulate data in a string or an array format. Describe the situation, manipulation process, and data result.

188. Math

Twenty two exceeds twice of a number by14. What is the number?

189. math

how do I solve 9/12=12/_

190. Math

a rectangle with an area of 200 square inches has a length and width in a ratio of 2:1. what are the length and width?

191. Anatomy & Physiology

A 50-year-old woman reports in her medical history that her mother has Graves' disease, so the woman is concerned about having the condition as well. Which of the following symptoms would suggest that she does indeed have this disorder? A. She suffers from

asked by Diana K
192. math

an open -end credit

asked by open -end credit
193. MATHS

Ken had three times as many apples as papayas. After selling 160 apples and 25 papayas, he had twice as many papayas as apples left. How many fruits did he have at first?

194. Calculus HELP!!

6 2 6 Let u = 4 , v = 2 , w = 2 5 3 1 Show that 2u - 3v - w = 0. Use that fact to find x1 and x2 that satisfy the equation 6 2 6 4 2 {x1} = 2 5 3 {x2} 1

195. Math

Need help with this question plz it's in/output Rule is divide by 6 Input output 36 2 10 24 7