# Questions Asked onJune 14, 2012

1. ## trig

A pendulum is 18 feet long. Its central angle is 44º. The pendulum makes one back and forth swing every 12 seconds. Each minute, the pendulum swings _____ feet. (Answer to the nearest foot.)

2. ## statistics

Let x be the number of courses for which a randomly selected student at a certain university is registered. The probability distribution of x appears in the table shown below: x 1 2 3 4 5 6 7 p(x) .04 .05 .08 .26 .39 .16 .02 (a) What is P(x = 4)? P(x = 4)

3. ## math

For a given right triangle, side a = 400 feet andside b = 900 feet.What is the measure of angle A to the nearest degree

4. ## Math

You plan to construct a brick wall measuring 4.5 m in length, 1.2 m high, and 0.5 m in width. If a brick measures 20 cm x 9 cm x 5 cm, how many bricks will you need? Total volume (to the nearest tenth) = ________ cubic meters. The number of bricks

5. ## Physics

A 0.40-kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 2.0-m on a frictionless horizontal surface. If the cord will break when the tension in it exceeds 75-N, what is the maximum speed the ball can have?

6. ## Math

The Smiths have a pool that is 20 feet by 35 feet. A 5 foot wide deck completely surrounds the pool. The average depth of the pool = 6 feet. How much surface area is covered by the proposed pool deck?

7. ## physics

If a force of 60 N is exerted on a 15 kg object, calculate the acceleration that the object undergoes. ________m/s(squared)

8. ## Physics

Calculate the force of the Earths gravity on a spacecraft 12,800 km (2 earth radii) above the Earths surface if its mass is 1350 kg?

9. ## math

A pile of coal is stored in a barrel-shaped bin whose base has a radius of 3 meters. The height of the pile measures 1.5 meters. What volume of coal is in the pile (to the nearest hundredth)?

10. ## chemistry

This question I really don't get it. I tried tried tried to figure out how to start solve the problem but still couldn't figure out. So can you help me with one question PLEASE? If so, can you please explain to me how you get the answer? Also can you show

11. ## calculus

∫ sin(x)sin(3x)dx find the integral

12. ## Physics

What will a spring scale read for the weight of a 75 kg woman in an elevator that moves upward with acceleration 0.30 g? w=?

13. ## Accounting

I need help in working this problem...please help... Gaines Company recently initiated a post audit program. To motivate employees to take the program seriously, Gaines established a bonus program.Managers receive a bonus equal to 10 percent of the amount

14. ## Physics

A discus thrower (with arm length of 1.2 m) starts from rest and begins to rotate counterclockwise with an angular acceleration of 3.6 rad/s2. (a) How long does it take the discus thrower's speed to get to 5.1 rad/s? (b) How many revolutions does the

15. ## Physics

2. A body fired vertically up reaches a maximum height of 120 m. The location at which the kinetic energy is 75% of the potential energy is...

16. ## Math

1.) Find the producers' surplus if the supply function is: S(q) = q^7/2+3q^5/2 + 54. Assume the supply and demand are in equilibrium at q= 25. 2.) S(q) = q^2 + 12q and D(q) = 900 - 18q - q^2 The point at which the supply and demand are equilibrium is (15,

17. ## Physics

1. A slingshot is used to launch a 5.00-gram rock. The effective spring constant of the slingshot is 200 N/m. By what distance must the slingshot be stretched in order to launch the rock at 20.0 m/s?

18. ## chemistry

How many molecules are in 25 grams of NH3

19. ## Chemistry

What volume of 0.250M KOH is required to titrate 2.30 x 10^3 mol of the weak acid H2C2O4 ? I know the answer is 18.4, but can you show the process?

20. ## Math

If a pool holds 22,000 gallons, how long will it take to fill the pool at a rate of 400 gallons per minute, rounded off to the nearest minute? _______ minutes Thank you

21. ## Physics

At a county fair, a boy takes his teddy bear on the giant Ferris wheel. Unfortunately, at the top of the ride, he accidentally drops his stuffed buddy. The wheel has a diameter of 14.6 m, the bottom of the wheel is 2.4 m above the ground and its rim is

22. ## Chemistry

A solution of AuCl- is mixed with a solution of Sn2+ under standard conditions. What is the equation? the answer is 2AuCl4- + 3Sn2+ -> 3Sn4+ + 2Au + 8Cl- how do i get this? ITS desperate... plz help me! THANK_YOU SO MUCH!

23. ## Maths

If tan inverse(x^2-y^2/x^2+y^2)=a then prove that dy/dx=x/y (1-tana/1+tana).

24. ## Forensics, Accounting

Which would be the least effective procedure for preventing procurement fraud? Confirming Inventory Creating an approved vendor list Reviewing monthly bank reconciliations Separating job responsibilities Looking for cliques

25. ## Statistics

An IRS auditor randomly selects 3 tax returns from 59 returns of which 11 contain errors. What is the probability that she selects none of those containing errors? Round to four decimal places.

26. ## Math

A plumber's assistant's rate of pay is \$0.75 per cubic foot of earth moved. He moves 220 cubic feet of earth to dig a trench. He moves the same amount to fill the trench. What is his pay for this job? \$___________ (These questions are all confusing)

27. ## Physics

A 1400-kg car rounds a curve of 57-m banked at an angle of 14 degrees. If the car is traveling at 98-km/h (27-m/s), will a friction force be required? If so in what direction? How much friction force will be required?

28. ## Math

If a mixture of 24 lb. of cement, 48 lb. of sand, and 63 lb. of gravel is needed to make 1 cubic foot of concrete, how many pounds of sand are needed to pour a pool deck of 156 cubic feet? _______pounds

29. ## Biology

to grow larger, arthropods must A grow a new endoskeleton. B grow a new exoskeleton. C add to the old endoskeleton. D add to the old exoskeleton. is it B?

30. ## math

Winborne has 35 coins consisting of dimes and nickels. If the value of his coins is \$3.30 then how many of each type does he have? Please help to check on correct answer my answer is 31 dimes and 3 nickels

31. ## chemistry

A mixture of 16 g of salt and 47 g of baking soda is poured into 296 ml of water. What is the total mass of the mixture in grams?

32. ## Math

Use the definite integral to find the area between the x-axis over the indicated interval. f(x) = 36 - x^2; [-1,13] So, what does be the area between the x-axis and f(x) equal? Thank you for any help! I'm really confused with this problem!

33. ## chemistry

water has a vapour pressure of 23.76 torr at 25C.what is the vapour pressure of a solution of sucrose ,if its mole fraction is 0.25?

34. ## math

The diameter of a wrecking ball used to tear down buildings is 3.5 ft. What is the volume (to the nearest hundredth)? Is there enough information given? Do I use formuls of v=4/3*pi*r(squared) Hope it makes sense

35. ## math

How many cement blocks are needed to construct a wall 0.5 ft. thick, 6 ft. high, and 60 ft. long if it takes 10 standard cement blocks to make 1 cubic foot of wall?

36. ## Physics

What is the centripetal acceleration of the Moon? The period of the Moon's orbit about the Earth is 27.3 days, measured with respect to the fixed stars. The radius of the Moon's orbit is RM = 3.85 · 108 m.

37. ## Biology

Which of the following are three common characteristics of echinoderms? A tube feet, circulatory system, body symmetry B marine-dwellers, endoskeletons, water-vascular system C bilateral symmetry, ossicles, respiratory system D mouths, protosomes, body

38. ## physics....

1) In one scene of the movie Raiders of the Lost Ark, Indiana Jones is running along the top of a moving train. He is running at a speed of 10 km/h, relative to the train. The train is moving at a speed of 100 km/h, relative to the ground. Draw a rough

39. ## Math

You are to paint the globe held aloft by a statue of Atlas. Its diameter is 10.5 in. How much surface area must you cover with paint if 27 square inches does not need to be painted (to the nearest hundredth)?

40. ## physics

Consider the motion of the hour hand of a clock. What angle does the hour hand make with respect to the vertical 12 o'clock position when it is at the times below? Express each angle in both degrees and radians, and measure angles going clockwise from the

41. ## math

Which one of the following statements best describes what a budget is? A. A method of figuring out the inflation rate. B. An organized plan for spending money. C. A way to keep people from really enjoying life. D. A plan for saving money.

42. ## Chemistry

A 15.0mL solution of H2SO3 is neutralized by 12.0mL of a standardized 1.00M NaOH solution. What is the concentration of the H2SO3 solution? Please reply with the steps on how to do this question so I can learn. I can't find examples or anything related in

43. ## Physics

What is the maximum speed with which a 1150-kg car can round a turn of radius 71-m on a flat road if the coefficient of static friction between tires and road is 0.80?

44. ## Physics

A ball having a mass of 4 kg is attached to a string 1 m long and is whirled in a vertical circle at a constant speed of 23 m/s. (a) Determine the tension in the string when the ball is at the top of the circle. (b) Determine the tension in the string when

45. ## ALGEBRA

The product of two consecutive positive even numbers is 728. What are the numbers? (Enter solutions from smallest to largest.) and

46. ## Chemistry

What would be the final concentration if 175mL of a 0.45M solution of sodium sulfite Na2SO3 are added to 650mL of water? Please reply with the steps on how to do this question so I can learn. I can't find examples or anything related in my textbooks and I

47. ## Physics

Consider a 52-cm-long lawn mower blade rotating about its center at 3390 rpm. (a) Calculate the linear speed of the tip of the blade. (b) If safety regulations require that the blade be stoppable within 3.0 s, what minimum angular acceleration will

48. ## Math

If a baseball is projected upward from ground level with an initial velocity of 64 feet per second, then its height is a function of time given y s(t) = -16t^2 + 64t. Graph this function for 0 < t

49. ## math

A triangle has points A(1, 2), B(1, 6), and C(3, 6) and is reflected over the x-axis. A'B'C' are the coordinates of the reflected image. What is the C' coordinate?

50. ## Math

What is the Greatest Common Divisor of 19 and 18?

51. ## chemistry

How many molecules are in 25 grams of NH3

52. ## ALGEBRA

Find the standard divisor (to two decimal places) for the given population and number of representative seats. Assume the population is equal to 8,640,000 and number of seats is 15. =

53. ## Math

A 24 ft shadow is cast by a ladder that is 7 ft tall. Find the tangent of the angle that the sunbeam makes with the ground

54. ## ALGEBRA

If \$540 is invested in an account that earns 19.75%, compounded annually, what will the account balance be after 12 years? (Round your answer to the nearest cent.) =

55. ## COLLEGE ALGEBRA

a board is 15 5/8 in. long . If it must be divided into three pieces of equal length , how long must each piece be ?

56. ## Personal Finance

What does it mean by 401k Investment Vehicles?

57. ## English

1. He watches TV in the night. 2. He watches TV at night. (Are both correct? which one is common?)

58. ## Accounting

I am trying to figure out how to do this problem: scenarios (projected \$90,000 annual cash inflow vs. projected \$70,000 annual cash inflow). Note, 5 years of \$90,000 per year equals \$450,000 of total cash received over the duration of the project (\$350,000

59. ## physics

Your English teacher can swim with a constant speed of 0.67m/s. While facing south , he attempts to swim straight across the St. Lawrence River , which moves east at 1.4 m/s a) find his velocity as seen from the riverbank. B) if the river was 175m wide How

you win a contest for which the prize is \$6,000,000. You are going to receive 20 yearly payments of \$300,000 what is the present value of this annuity? support your answer by means of an example using a discount rate of 5%

61. ## Accounting

What account class would cash prize payment be under? A. Operating expense B. Cost of Goods Sold C. Asset D. Expense E. Liability I'm stuck between A, B, D. Help. thanks.

62. ## math

Jim's house is built on a 43⁄4 -acre plot of land. Jane's house sits on a 3-acre piece of land. Find the ratio of the size of Jim's land to the size of Jane's land.

63. ## math

`A chain store manager has been told by the main office that daily profit, P, is related to the number of clerks working that day, x according to the equation P= -25x^2+300x. What number of clerks will maximize the profit, and what is the maximum possible

64. ## maths

the measure of one of the angles of a parallelogram is 120 degree. what are the other angles?

y^3-13y^2+36y Can someone please show me step by step that way I can understand. Thank you

66. ## Math

The amount of nitrogen dioxide A in parts per million (ppm) that was present in the air in the city of Homer on a certain day in June is modeled by the function A(t) = -2t^2 + 32t + 12, where t is the number of hours after 6:00 A.M. Use this function to

67. ## Math

On Monday, Archie paid \$3.40 for three doughnuts and two coffees. On Tuesday he paid \$3.60 for two doughnuts and three coffees. On Wednesday he was tired of paying the tab and went out for coffee by himself. What was his bill for doughnut and one coffee?

68. ## factor the trinomial by grouping

15x^3-9x^2-6x Can someone please show me how to factor completely.. trying to learn how to do factoring

69. ## chemistry

What would happen to a weak base dissocialation equilibruim if more products were added?

70. ## maths

Factorize: 1.) 64x^3-y^3 2.) x^4+10x^3+35x^2+50x+24 3.) x^3/8-64-3x^2+24x

71. ## statistic & probability

How many 5 digit numbers can be formed using the digits 0, 1, 2, 3, 4, 5, 6 if repeition are not allowed. do i use 7P5? since i am choosing 5 numbers from 7 and they can't be repeated?

Joanne Flynn bought a new boat for \$16,200. She put a \$2,800 down payment on it. The bank’s loan was for 50 months. Finance charges totaled \$5,380.00. Assume Joanne decided to pay off the loan at the end of the 22th month. (Rule of 78) What rebate would

73. ## math

what happen to the computer programmer?

74. ## physics....

When a photon bounce off an electron, it gives some of its energy to the electron. The photon has no mass, however, and it must continue to travel at speed c. How is its reduced energy manifested?

75. ## Chemistry

If 125mL of a 1.10 NaCl solution is mixed with 105mL of a 0.850M CaCl2 solution but NO reaction takes place, calculate the final concentration of each of the ions in the final solution. Please reply with the steps on how to do this question so I can learn.

76. ## Math

From the word COMBINE, how many different 7 letter words are possible : - with I adjacent to N? - with alternating vowels and consonants? -if a 5 letter word instead of 7 letter word is made from COMBINE, how many probability are that has exactly 3

77. ## ALGEBRA

Solve the equation. (Enter solutions from smallest to largest. If there is no solution, enter NONE in the answer boxes.) 4x2 = 19x + 5 x = x =

78. ## trigonometry

If sinA+tanA=p then sin2A?

79. ## Honors English III

Write your own journal entry from the perspective of a member of Bradford's colony. What do you think of these unruly pirates? What shocks you the most about these surly characters? How do the manners of the pirates differ from yours?

80. ## budgeting

Emilio is employed as full-time mechanic in the service department of an auto dealer. In his spare time, he draws political cartoons and sells them to the weekly newspaper in his home town. He is paid \$35 for each cartoon, which amounts to an additional

To help consumers in this tough economic climate, Pikes Peak Harley-Davidson offered to finance a new motorcycle for qualifying customers at 14% down, 11.00% interest for 60 months during July 2009. Rich Martinez was interested in calculating what his

you have \$7259 credit card debt, and you plan to pay it off through monthly payment of \$77. If you are being charged 12% interest per year, how long will it take you to repay your debt

83. ## physics

Which one of the following statements is true for two bodies having same kinetic energy but different masses? a. they have same velocity b. they have same momentum c. the momentum of smaller mass body is smaller than the other d. the momentum of smaller

84. ## Social Studies

1. For revolutionaries like Sam Adams, the term _______ embraced a way of life, a core ideology, and an uncompromising commitment to liberty and equality. A. independency B. republicanism C. federalism D. Americanism 2. Which of the following best

85. ## ALGEBRA

Solve the equation. (Enter solutions from smallest to largest. If there is no solution, enter NONE in the answer boxes.) 4x2 = 19x + 5 x = x =

86. ## Writing/Essay

I Need To Write a 1 1/2 page on a personal narrative about an incident in your life.Though it does not have to be entirely true, select a familiar topic that you are comfortable with. I need help on deciding what topic I want to write about, and also help

87. ## Earth Science

Scientists tell us that the Earth is suffering ill effects from ozone depletion and the greenhouse effect. Compare these two phenomenons. What aspects do they have in common? How might they actually help eah other to produce conditions in which humans and

88. ## Beginning Spanish-SraJMcGin

I am sorry I posted this a few moments ago with the wrong name attached at the top I apologize. I had these 2 questions that went with my earlier question. Lee cada situación a continuación y, según el contexto, indica si el se o nos significa each

89. ## Algebra

solve:2y^2+8y-24=0

90. ## math

ok i have 10th grade math next year and i don't even know half the stuff for this year and its summer brake and im worrying about math..what do i do

91. ## statistics

Suppose that 65% of all California State students own a motorcycle. A random sample of 100 CS students is surveyed and 61% indicate that they own a motorcycle. a. What is the value of the population percent given to you in the problem? b. What is the value

92. ## math

If n(B) = 17, n(A B) = 30, and n(A ¿ B) = 4, find n(A).

93. ## civics

Martin Luther King Jr.'s _____ speech championed equality and justice for all people, not just blacks.

94. ## statistics

Suppose that 65% of all California State students own a motorcycle. A random sample of 100 CS students is surveyed and 61% indicate that they own a motorcycle. a. What is the value of the population percent given to you in the problem? b. What is the value

95. ## ALGEBRA

Suppose the modified quota is 9.27. Fill in the blanks, and round your answers to two decimal places. (a) Find the lower quota. (b) Find the upper quota. (c) Find the arithmetic mean of the lower and upper quotas. (d) Find the geometric mean of the lower

96. ## ALGEBRA

Find the amount of interest and the monthly payment for the loan. Purchase a car for \$42,800 at 2.7% add-on rate for 5 years. (Round your answers to the nearest cent.) \$ interest = \$ per month =

97. ## Grammar: Sentences

What is a word referring to a deity? Im having trouble on searching it on google, but all i saw was bold words.

98. ## Chemistry

How does light energy work? Is red light the lowest? or is blue light?

99. ## ALGEBRA

Find the ending balance in an account that opens with \$3,560, earns 3.5% interest compounded monthly, and is held for 15 years. (Round your answer to the nearest cent.) =

100. ## algebra

A student has a number of \$40 and \$ 80 savings bonds to use for part otf their college expence.The total value of bonds is \$1160.There are 5 more \$40 bonds than \$80 bonds.How many of each type of bonds she have?

101. ## friendship

my friend and i need to teach our other friend a lesson about the real world but everytime we try and explain these things to her, she doesnt understand and feels a little insulted. any help on how to teach her a lesson without being mean??

102. ## Art

I need to write the expression of the sculpture Seated Jain Tirthankara, and then list 4 characteristics. I said the expression looks relaxed.. (am i right?) And i don't know how to describe his face exactly please help

103. ## ALGEBRA

Assume f(x) = x2 + 4. Find the functional value requested. f(-3) =

104. ## college statistics

assume the population of heights of female college students mean of 64.37 inches standard deviation of 6,26 in and random sample of 74 find p(x>65.25)B. find p(x>65.25)c. why is formulas required to solve a different than c.

105. ## recreation travel

I need a tube that is 118cm long. The total allowance is 158cm by Multiplying the LxWxH. What circumference can the tube be.

Jamal currently earns \$20,000 a year in gross wages. On January 1, he is due to receive a 2% COLA. What will his gross income be after the COLA takes effect? A. \$19,600 B. \$20,100 C. \$20,400 D. \$24,000 i got C.

107. ## physical science

determine the amount of gravity of two bobies whose mass is 10 grams each and are 10 cm apart?

108. ## physical edu

How many unused calories create one pound of excess body fat? 500 b. 1000 c. 1500 d. 2500 e. 3500 is it E

109. ## math

Tiffany worked 9 1/5 hours on Monday and 10 1/4 hours on Tuesday ... how many hours did she work on those two day???

110. ## statistic & probability

An order of ward presentation has been devised for seven people: Jeff, Karen, Lyle, Maria, Norm, Olivia, and Paul. How many ways can the men be presented first and then the women?

111. ## arithmetic

lim_(x->0) (1/x^2-1/(sin^2(x)))

112. ## angebra

ok i have 19th grade algebra next yeah and i don't even know half the stuff from thid year...soo what di i do cuz i am totsly going to fail i mrn itd summy snd im worried about algebra

113. ## ALGEBRA

The half-life of 234U, uranium-234, is 2.52 multiplied by 105 yr. If 98.3% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed? =

114. ## Science

Writeacher, I urgently need you to check these sentences, though I believe they don't make sense. Although I'm not a mechanic, I don't think the use of scientific English is correct. 1) I would like to focus on a kind of technology which is used to

115. ## algebra 2

the area of the blanket equals 36x^4-64x^2, write an equation that will help you find the length

116. ## English

Would you let me know some accessary-related words beginning with the letter "T"?

117. ## Math

how do you solve 4/x-2-7/x^2-4=1

118. ## Physical edu

Stress is the nonspecific response of the human organism to any demand made upon it. is it True

119. ## ALGEBRA

Evaluate the expression. \( _5^9 \) \( _2^4 \) \( _1^4 \)

120. ## sa

Which one of the following budget items would probably be considered a fixed expense? A. Entertainment B. Savings C. Clothing D. Insurance premiums

121. ## Math: Calc: Implicit Derivatives

Find dy/dx give the relation (x^2/9)+(y^2/16)=1 Thank you!!

122. ## physical

the missile in problem 16 took 2 minutes to reach the height it attained. how much power was used?

123. ## beginning spanish

The assignment is to identify if "SE" or "NOS" is next to a REFLEXIVE verb/action (the subject(s) is(are) transmitting the action to himself (each other)) . Lee cada situación a continuación y, según el contexto, indica si el se o nos significa each

124. ## physical edu

what are the 9 processes for behavior change contract?

125. ## history

Why did several of these new nations turn to the Soviet Union rather than the United States for support?

126. ## maths

The smallest of three consecutive integers is added to the largest, the result so obtained is 15 less than 4 times the middle integer. Find the integer.

127. ## math

waiting for my answer on the ageprime factors

128. ## English

1. Let's break up the wall. 2. Let's break the wall. (What is the difference between 'break up' and 'break'?)

129. ## english

how student can help attainoptional as creatively ,critically

130. ## maths

The smallest of three consecutive integers is added to the largest, the result so obtained is 15 less than 4 times the middle integer. Find the integer.

131. ## physical edu

Catecholamines are stress hormones which are especially prevalent in Hot Reactors. is it False

132. ## Management

describe the probable results implementing an across the board reduction 7% in reduction in all variable non food cost? select all that apply A) profits will increase in roportion to cost savigs. [B)] total store expenses may drop C) guest satisfaction may

133. ## Physics HELP

how do u conver 334 (m/s) to acoustic independence unit? kg(m^2s)

134. ## maths

1) 4(x-y)^2-12(x-y)(x+y)+9(x+y)^2 2) (-2p+3q+r)^2 3) x^6-64 4) x^3-x

135. ## Algebra

(4/x-2)-(7/x^2-4)=1

136. ## Algebra

what is the area of a rhombus whose diagonals is 16 and 9

137. ## phi 200

Consider a specific moral question which might make it difficult to accept the relativist's response. State the moral issue involved, and provide an explanation as to why you think a relativist might have problem giving a justified response to it