# Questions Asked onApril 30, 2015

1. ## math help me

Solve: 6C3 (1 point) 120 720 20 240 2. Which is not a combination? (1 point) choosing 3 toppings for your pizza lining 3 students up in a row choosing 2 desserts from a tray of 10 choosing 5 students to represent a class of 30 3. How many ways can you

2. ## MATH

1.) solve the equation 2 x - 3 = 15 A. x=6 B. x=9 C. x=24 D. x = 36 2.) Solve the equation r - 4 = 11 --- 3 r = 45 r = 35 r= 33 r = 28 3.) solve the equation 7+ 3 m = 28 m = 18 m = 11 2 divide by 3 m = 9 m = 7 PLEASE HELP MS. SUE

3. ## check pls

Grayson is designing a rectangular athletic field. On his scale drawing. the vertices of the rectangle are (4,5), (9,10), and (9,5). What are the coordinates of the fourth vertex? A. (4,9) B. (4,10) C. (5,10) D. (5,9) I think it's A. (4,9) Am i right?

4. ## Math

You and a friend go to the movies and split the cost of the movie tickets and snacks. You pay the bill. You tell your friend he owes only \$9 because you owed him \$4 from the last time you went to the movies. How much was the total bill? Let b represent the

5. ## Science Plzz Help Ms sue

explain how genetic variation and environmental pressures can lead to a change in the characteristics of a population.

6. ## Math

Small cubes with edge lengths of 1/4 inch will be packed into the right rectangular prism. How many small cubes are needed to completely fill the right rectangular prism? The height is 3 3/4 inches, the width is 5 inches, length is 4 1/2 inches. ( the

7. ## chemistry

Calculate the mass of oxygen gas required to occupy a volume of 6 L at a pressure of 20.9 kPa and a temperature of 37◦C.

8. ## consumer math A

Find the interest due on \$800 at 12% for 120 days.

9. ## math

jerry sold 7/20 of the total number of tickets that were sold for the spring band concert what percent of the total number of tickets did jerry sell

10. ## chemistry

Write the balanced net ionic equation for the following reaction and determine the conjugate acid-base pairs. HNO3(aq)+Li2CO3(aq)LiNo3(aq)+LiHCO3(aq) Which component in the net ionic equation is the acid, the base, the conjugate base, and the conjugate

11. ## math

The ferris wheel shown makes 12 revolutions per ride.how far would someone travel during one ride

12. ## Physics

Update: Planets are not uniform inside. Normally, they are densest at the center and have decreasing density outward toward the surface. Model a spherically symmetric planet, with the same radius as the earth, as having a density that decreases linearly

13. ## Consumer math

A deposit of 4,000 at 9.5% for 270 days

14. ## Math

Kaya drove 200 miles in 5 hours of actual driving time. By driving an average of 10 miles per hour faster, Kaya could have saved how many hours of actual driving time? A. 1 / 6 B. 2 / 3 C. 7 / 10 D. 1 E. 4

15. ## Consumer Math- HELP

1. Fred salmon purchased six 1,000 bonds at 92. The bonds pay 6.5% What was the cost of the bonds? What was the total annual interest? What is the yield (to the nearest percent)? 2. John Tucker is interested in purchasing stock. He wants to determine the

16. ## Algebra

a personal identification number consists of 3 letters followed by 3 digits (0-9). the letters x,y and z are not used and the last digit cannot be 0 or 9. how many different identification numbers are possible?

17. ## bookkeeping

Worksheet (Use the information from the trial balance in Exam Figure 2. Write the worksheet information on the form in Exam Figure 1.) You’ll need the following adjustment information: a. P. Woodsley counted the supplies on May 31 and found that the

19. ## math

6cm diameter discs are cut from a sheet 130cm long and 70cm wide.(a)How many discs can be cut in this way (b) what area of the sheet is wasted? (My working so far). Area of rectangle=L*B 130*70=9100cm^2 area of circle=22/7 *(6/2)^2=28.286cm^2 (a)no of

20. ## Algebra 2/statistics

On a fair 6-sided die, each number has an equal probability p of being rolled. when a fair die is rolled n times, the most likely outcome (the mean) is that each number will be rolled NP times, with a standard deviation of sqrt NP(1-P). Brandon rolls a die

Please help me with the following question: A paradox is a literary device often used to A. emphasize or make readers think about important ideas. B. provide hints or clues about events that occur later in a story. C. explain a character’s reason for

22. ## Math

The manager of the theater wants to sell the popcorn in a cone with a diameter of 7 inches. What does the height of the cone need to be in order to hold the same amount of popcorn as the cylinder?

23. ## Physics

The lens and mirror in the figure below are separated by d = 1.00 m and have focal lengths of +74.8 cm and -42.2 cm, respectively. An object is placed p = 1.00 m to the left of the lens as shown.

24. ## Economic

Julee has estimated the demand and marginal revenue for her product. They are P = 100 − 2Q (quantity) and MR = 100 − 4Q, respectively. She also experiences constant marginal cost of \$16. ​a.​Does Julee have any market power? How can you tell?

25. ## studio art

how is a interior designer in a modern kitchen most different from interior design found in nineteenth century kitchen

26. ## Math

A submarine left the surface of the water at the rate of 2 meters per second. At the rate how long would it take the submarine to reach -60 meters level

27. ## Physics

A racket exerted an average force of 152.0 N on a ball initially at rest. If the ball has a mass of 0.070 kg and was in contact with the racket for 0.030 s, what was the kinetic energy of the ball as it left the racket?

28. ## math

Small cubes with edge lengths of 1/4 inch will be packed into the right rectangular prism. The dimensions are 4 1/2 inches in length, 5 inches in width, and 3 3/4 inches in height. Each cube is 1/4 inches. How many small cubes are needed to completely fill

29. ## math

prove that the value of cosx + secx can never be 3/2.

30. ## SOLVE -MATH

A physics exam consists of 9 multiple choice questions and 6 open-ended problems in which all work must be shown.If an examinee must answer 6 of the multiple- choice questions and 3 of the open-ended problems, in how many ways can the questions and

31. ## math

What will the graph look like for a system of equations that has no solutions? A. The lines will be perpendicular. B. The lines cross at one point. C. Both equations will form the same line. D. The lines will be parallel. Is the answer B?? Thank you

32. ## Math

Writing to Explain Yuri says that the difference between the least amount of time it takes a student to say the alphabet and the greatest amount of time is 4 1/2 seconds. Do you agree? Explain.

33. ## math: 68-95-99.7 rule

suppose that prices of a certain model of new homes are normally distributed with a mean of \$150,000 use the rule to find the percentage of buyers who paid: between \$150,000if the standard deviation is \$1200

34. ## s.s

According tot he excerpt, violence by the Ku Klux Klan against african americans and their white supporters was _____ to stop because juries often _____. A. very easy; were against the Ku Klux Klan and its activities B. very difficult; were made up of Ku

35. ## MATH

A physics exam consists of 9 multiple choice questions and 6 open-ended problems in which all work must be shown.If an examinee must answer 6 of the multiple- choice questions and 3 of the open-ended problems, in how many ways can the questions and

36. ## ALGEBRA

A service that repairs TV's and sell maintenance agreement for \$9 a yr. the average cost for repairing a TV is \$39 and 3 in every 100 people who purchased maintenance agreements have TV that require repair Find the services expected profit per maintenance

37. ## Earth Science

What are some factors that make it difficult for geologist to learn about the Precambrian era?? Please Explain

38. ## Algebra

1. Is it more difficult to run up a ramp with a slope of 1/5 or a slope of 5? 2. What is the slope of a line that passes through the points (2,0) and (5,0)? 3. A line has a slope of 2. It passes through the points (1,2) and (3,y). What is he value of y? 4.

39. ## Volume

Imagine that you have an ideal gas in a 7.00L container, and that 1050 molecules of this gas collide with a square-inch area of the container at any given instant. If the volume is increased to 56.0L at constant temperature, how many collisions will occur

Jeff put small box that is 12 inches long, 8 inches wide, and 4 inches tall inside a box that's 20 inches long, 15 inches wide, and 9 inches high. How much space is left in the larger box?

41. ## Social Studies

Which describes a belief of the progressive movement? (1 point) the belief that government could correct the ills of society the belief that individual citizens could work to improve social problems the belief that business and the free enterprise system

Prove (sin4x)/(1-cos4x) = cotx - 1/2(cscxsecx) Please help me get started on this question... I'm at a lost as for what to do first....

43. ## math

Answer the following questions below that go with the following: Let's say that a locker combination lock uses numbers 0 through 39 for a 3 digit combination. 1.) Exactly how many combinations are possible if NO digit may be repeated? And how many

44. ## math

find a number that: it is a 3 digit number larger than 399 and smaller than 500 both digits in the tens place and ones place are odd and their sum is equal to 5 the digit in the ones place is larger than the digit in the tens

45. ## Math

If I were to graph this equation y= 2x + 0.5 would I graph x as 2 and y as .5?

46. ## science

to study and change of current due to variation of resistance in an electric circuit?

47. ## algebra

A population of wolves in a county is represented by the equation P(t)=80(0.98)^t, where t is the number of years since 1998. What will be the number of wolves in the population in the year 2012?

48. ## physics

A football kicker can give the ball an initial speed of 25m/s. What are the greatest and least elevation angles at which he can kick the ball to score a field goal from a point 50m in front of goalposts whose horizontal bar is 3.44m above the ground?

49. ## Math

A painting shaped like a circle had a diameter of 20 inches. A circular frame extends 2 inches around the edge of the painting. How much wall space does the framed painting need? Use 3.24 for pi.

50. ## Math

Allie's plant has a height of 6 meters. rayon's plant grows 3/10 meter higher . How high does Rajon's plant grow?

51. ## English

In our text discussion, we compared a two-way conversation with a top-down situation, such as that which students encounter when listening to a lecture. What was this comparison intended to illustrate? A. The need to pay attention to an instructor’s

52. ## math

if r=9 units and h=4units what is the volume of the cylinder shown above use 3.14 for pie symbol

53. ## Math

Reason A new student joins Ms. Sousa's class. That student can say the alphabet in 3 1/2 seconds. What is the new difference between the greatest length of time and the least length of time? A. 4 1/2 seconds B. 4 seconds C. 3 1/2 seconds D. 3 seconds

54. ## chemistry

If 765000 J of energy are added to 7.90 L of water at 291 K, what will the final temperature of the water be? Answer in units of K.

55. ## English/Writing

As you analyze an essay, you can use your own words to summarize the author’s key ideas and map out the organization of the essay’s key points. This is called A. critiquing. B. anchoring. C. summation. D. transcribing. B. anchoring

56. ## Calculus

How would I find the equilibrant of three vectors? I am given a graph of three different vectors which meet at the point (0,0)

57. ## Early Childhood Education

A ________ is an in-depth look at a particular child at a specific point in time.

58. ## math

Find the HCF and LCM of: 1 + 4x + 4x^2 - 16x^4.. ,1 + 2x - 8x^3 - 16x^4.., 16x^4 + 4x^2 + 1

59. ## physics

2. An object is 20.0 cm from a converging lens, and the image falls on a screen. When the object is moved 4.00 cm closer to the lens, the screen must be moved 2.70 cm farther away from the lens to register a sharp image. Determine the focal length of the

60. ## Math

Using the formula. I =Prt ,calculate the simple interest where t=1/n and n is the number of periodd per year for compounding. You have \$20,000 and wished to invest it in one of two ways. Option A: You may invest it in a certificate of deposit for 10 years

61. ## physics

Two +'ve charges separated by a distance 2m each other with a force of 0.36N. If the combined charge is 26mc , the charges are

62. ## Math

Anna saved \$20 in a jar each month for 2 1/2 years. She spent 75% of her savings on a computer. How much money did Anna have left in the jar?

63. ## ALGEBRA

Jan plans to invest \$7500, part at 4% simple interest and the rest at 5% simple interest. What is the most that he can invest at 4% and still be guaranteed at least \$325 per year?

64. ## Civics HELP! Ms.Sue

Given the maps above, what could you say about the relationship between income level and voting in Florida? A) Higher income districts tend to be more heavily Democratic. B) There is no apparent relationship between the income level and voting habits. C)

65. ## SPANISH 3

I was given this assignment: "Escribe en español un párrafo breve de por lo menos cuatro oraciones. Habla de la foto aquí usando los adjetivos demostrativos como pronombres." (The picture is of a woman on a computer with a man standing over her). Are

66. ## math:Fundamental Counting Principlal

solve the problem by applying the fundamental counting principal with two groups of items. Shaun is joining a music club. as part of ther 4-cd introductory package she can choose from 12 rock, 10 alternative, 7 country, and 5 classical. if Shaun choose one

67. ## Calculus

Imagine making a tent in the shape of a right prism whose cross-section is an equilateral triangle (the door is on one of the triangular ends). Assume we want the volume to be 2.2 m3, to sleep two or three people. The floor of the tent is cheaper material

68. ## biology

A toxin from a poisonous mushroom has been identified as a hydrophobic weak acid. It somehow can find its way to the inner membrane of mitochondria where it gets protonated on the outer surface of the membrane but deprotonated on the inner surface of the

69. ## Physics

Two electrostatic point charges of +60.0 μC and +57.0 μC exert a repulsive force on each other of 161 N. What is the distance between the two charges? The value of the Coulomb constant is 8.98755 × 109 N · m2/C2. Answer in units of m.

70. ## Physics

An X-ray tube used for cancer therapy oper- ates at 8.8 MV with a beam current of 19 mA striking a metal target. Calculate the power of this beam.

71. ## Discrete Math

3. A club with 8 women and 6 men needs to choose two different members to be president and vice president (combination or permutation). a. In how many ways is this possible? b. In how many ways is this possible if women will be chosen as president and a

72. ## Math

Find the approximate area of each circle. Use the value of pi that makes the math the simplest for you. In the example, it's a circle with 14cm written on it in the middle. I'm

73. ## math

Find the HCF and LCM of: 1 + 4x + 4x^2 - 16x^4.. ,1 + 2x - 8x^3 - 16x^4.., 16x^4 + 4x^2 + 1

74. ## s.s

All persons born or naturalized in the united States and subject to the jurisdiction thereof, are citizens of the United States and of the state wherein they resize. No state shall make or enforce any law which shall abridge the privileges or immunities of

75. ## physics

four equal charges 2*10^-6c each are fixed at the four corner of a square of side 5cm.find the coulumb force experinced by one of the charge due to rest three

76. ## Chemistry

To titrate the acetic acid in 10.0 mL of vinegar sample, 25.5mL of 0.5M sodium hydroxide solution is needed. What is the concentration of acetic acid in the vinegar?

77. ## Career

1.)How people produce, distribute, and use goods and services? a.) Economy b.) Free enterprise system c.) Competition d.) Profit 2.)The amount of goods and services available for sale. a.) Producers b.) Consumers c.) Supply d.) Demand 3.)The amount of

78. ## Algebra 2/Statistics

From a squad of 12 cheerleaders, 10 will assemble themselves into a 4-level pyramid at the Homecoming rally. 1.) How many different combinations of cheerleaders can be used to build the pyramid? For this I got 12C10=66......Right or Wrong? 2.) The coach

Find the HCF and LCM of: 1 + 4x + 4x^2 - 16x^4.. ,1 + 2x - 8x^3 - 16x^4.., 16x^4 + 4x^2 + 1

80. ## physics

A stone is dropped from the top of a cliff which is 100m high. At the same time another stone is vertically thrown upwards from the foot of the cliff woth a speed of 40m/s.AT what height and when do the stones meet

81. ## Chemistry

20.00mL of 0.55M CH3COOH solution is mixed with 9.95mL of 1.0M NaHCO3 solution. The reaction occurring is CH3COOH + NaHCO3 --> CH3CHOO + Na + H2O +CO2. Which is the limiting reagent in this reaction?

82. ## Chemistry

I need help on my chem lab... I need to give you background info so you know how to help me.. Data Sheet: Specific gravity of distilled water Temp of distilled water = 20 C Specific gravity: 1.0000 or 1.000 (according to hydrometer used) sugar solution 1 :

83. ## Science

why might an ecologist use a food chain for one study and a food web for another study

84. ## math

The cost of a minibus was Shilling 950,000. It depreciated in value by 5% per year for the first two years by 15% per year for the subsequent years. (a) Calculate the value of the minibus after years (b) After 5 years the minibus was sold through a dealer

85. ## Math

In 1982 , the California Minimum wage was \$3.35.Suppose that a bartender in 1982 makes minimum wage plus \$80 per night in tips,and that they work full time(8 hrs per day, 5 days per week, 50 weeks per year) Considering a standard inflation rate of 4.5%

86. ## MAT 142

What is the cost of concrete for a walkway that is 15 feet long, 8 feet wide and 9 inches deep if the concrete costs \$30 per cubic yard?

87. ## Social Studies

Because of her reform activities, which group would not have supported Rebecca Latimer Felton? (1 point) supporters of educational opportunities for all citizens of the state supporters of the suffrage movement to gain voting rights for women supporters of

88. ## chemistry

Determine the percent yield for the following generic reaction using the information given below: Compound A --> Compound B if you start with 10.0 mL of Compound A and obtain 9.0 g of Compound B. Density of Compound A = 0.75 g/mL MW of Compound A = 150.

89. ## Chemistry

There are three isotopes of phosphorus. Only one of them is stable. Calculate the binding energy per nucleon (in MeV) for P-32 (atomic mass = 31.9739 u). mass H = 1.007825 u and mass n = 1.008665 u. I multiplied the protons(15) by the mass H, and the

90. ## statistics

Probability: How many ways can a person select 4 programs from a television guide of 16 programs?

91. ## Algebra 2

A sequence is recursively defined by, t1=1, t2=2, t2n=2t2n-2, and t2n+1=3t2n-1

92. ## Math

THE CIRCUMFERENCE OF A CIRCLE IS 31.4 centimeters. What is the area of the circle?

93. ## Literature

I have an 8-10 page final essay due concerning the Odyssey. I know my topic I want to use for my essay is FAMILY. The problem I having is forming an argumentative thesis. My question is... How would I begin to form an argumentative thesis? I continue to

94. ## Physics

A net charge of 73 mC passes through the cross-sectional area of a wire in 9 s . What is the current in the wire? The fun- damental charge is 1.602 × 10−19 C.

95. ## History

What is one certain long-term cost of adding to national debt? a.) Americans in the future must have fewer public services b.) Americans in the future will not vote in elections c.) Americans in the future will not enjoy the benefits of the program d.)

96. ## maths

Three consecutive terms of a Geometric Progression are − 6, p and − 32 . find the value of p.

97. ## chemistry

how much copper sulfate do i need to make a solution of 100ml of 1M copper sulfate?

98. ## English Literature

Hello, I'm a English Literature student. I'm going to make a Project on William Shakespeare and John Milton. As I said, it's an English project, So please suggest me some good topics/title for both the projects. Also please give me some general tips and

99. ## Calculus

What is the solution to the following system of equations -2x+3y+z=5 x+5y+2z=17 To do this, I used elementary operations and isolated x to get 13y+5z=37. Is that correct so far? How would I continue?

100. ## chemistry

How to calcuate therotical pH 1.) 0.1 M HCl measured pH=1 2.) 0.1 M NaOH measured pH=13?

101. ## math

There are two sign posts A and B on the edge of the road. A is 400 m to the west of b. A tree is on a bearing of 060° from A and a bearing of 330° from B. Calculate the shortest distance of the tree from the edge of the road.

102. ## Chem

what pressure is exerted by 784.3g of CH4 in a 0.870 l steel container at 184.3 k I don't know how to start it or the formula

103. ## physics

four equal charges 2*10^-6c each are fixed at the four corner of a square of side 5cm.find the coulumb force experinced by one of the charge due to rest three

104. ## Chemistry-is this right?

Water has a pH of 4.9? Calculate H3O and OH 1. H3O= 10^4.9=1.25*10^-5 2. OH= 14- 4.9= 9.1

105. ## Chemistry

I need help on my chem lab... I need to give you background info so you know how to help me.. Data Sheet: Specific gravity of distilled water Temp of distilled water = 20 C Specific gravity: 1.0000 or 1.000 (according to hydrometer used) sugar solution 1 :

106. ## Chemistry Dr. Bob

I need help on my chem lab... I need to give you background info so you know how to help me.. Data Sheet: Specific gravity of distilled water Temp of distilled water = 20 C Specific gravity: 1.0000 or 1.000 (according to hydrometer used) sugar solution 1 :

107. ## History!!!

What does this poll most suggest about U.S. citizens? a.) they belive that higher taxes are worth the cost and benefits b.) they think that most government programs have little value c.) they prefer fewer public goods and services over higher personal

108. ## Math

A triangle with a Base of 8 inches and a height of 7 inches has a circular section of diameter 3 inches removed from its center. What is the remaining area of the triangle? (Use π = 3.14)

109. ## Math

A triangle with a Base of 8 inches and a height of 7 inches has a circular section of diameter 3 inches removed from its center. What is the remaining area of the triangle? (Use π = 3.14)

110. ## Physics

If the current in a wire of a CD player is 1.10 mA, how long would it take for 3.40 C of charge to pass a point in this wire?physi

111. ## Math Check

Let’s say you have a bedroom drawer that contains about 2 red socks, 4 white socks, and 8 blue socks. Without looking in the drawer, you pick out a sock, take it back, and then pick out a second sock. What could the probability be if the first sock is

112. ## Discrete Math

15 Please calculate P(E|F) given P(F|E)=0.3, =0.25 and P(E)=0.6

113. ## Financial math

Taylor is purchasing a home for \$235,000. She is putting 20% down. She has qualified for a 30 year mortgage at 4.5% APR. Calculate her monthly payment.

114. ## Ethics in Tech

In the absence of laws, businesses can form __________ to reduce positional arms races. A. campaign committees B. cooperative agreements C. task forces D. networks im confused between B n C

115. ## Discrete Math

12 A computer science department has a probability of 0.35 that a senior receives a job offer in IT before graduation. Random select 8 senior students • What is the probability that 5 students received offers before graduation? • What is the

116. ## Calculus

I'm not sure how to do this; I figured I should use separation of variables but I got the wrong equation. Help is appreciated, thanks! If dy/dx=(1+x)/(xy), x > 0, and y = –4 when x =1, when x =3, y = ? A. 6.433, −6.233 B. 3.898, −3.898 C. 4.711,

117. ## math

X|-1|0|1|2| y|-2|1|4|7| What is the rule for the function shown in the table? A.y= 1/3x+1 B.y=3x+1 C.y=1/3x D.y=1/2x+1 Is the answer B??

118. ## algebra 2

what is the degree and leading coefficient of 10x^3=3x^2-x+7?

119. ## Math

1.) What is the formula for the nth term of the arithmetic sequence that has a common difference of 8 and a first term of 4? 2.) What is the formula for the nth term of the geometric sequence that has a first term of 2 and a ratio of 3?

120. ## math

A ship leaves an island (5°N, 45° E) and sails due east for 120 hours to another island. Average speed of the ship is 27 knots. (a) Calculate the distance between the two islands (i) In nautical miles (ii) In kilometers (b) Calculate the speed of the

121. ## History

Politicians are most likely to make laws with short-term benefits and long-term costs because a.) they do not understand economics b.) they are not worried about the future c.) they wish to please voters today d.) they thing the laws are necessary

122. ## math

a person had to drive 1417 miles. They drove 9 hours a day for 3 days. How many miles per hour did they drive?

123. ## Trigonometry

Suppose I'm graphing a graph like j(x) = -2 sin 4x. How can I tell if the origin is an x-intercept for it?

124. ## Calculus

What are the coordinates of the point on the graph of f(x)=(x+1)(x+2) at which the tangent is parallel to the line with equation 3x-y-1=0? a)(-3,2) b)(-1,0) c)(0,2) d)(1,6) To answer this, I put f(x)=(x+1)(x+2) into the form f(x)=x^2+3x+2 and found the

125. ## Discrete Math

14 There 2 dies. One is 8 sides (octahedral die) and another is 6 sides (normal). All are fair dies. a. What is the expected value when the 2 dies tolled together b. What is the variance when the 2 dies tolled together

126. ## Discrete Math

Determine where the big O(g(x)) for following functions • F(x)=2xlogx+1 • F(x)=3x -2x +1 • F(x)=4x -2x -3x +4 • F(x)=( x +1)/( x +4) • F(x)=(x+1)/(x-4

127. ## History

Write the centuries and period (AD/BCE)each of the following date from AD2000 I.1200 years ago II.500years to come.

128. ## Math

Evaluate : 2x^2 - 9x+7 when x=-7/2

129. ## Science

What type of tissue do you think the wall of the villi is made from? Is it connective tissue or maybe epithelial tissue?

130. ## Math

Reduce the fraction: 5,040/59,400

131. ## Economics

At the present price of \$20 per unit, the firm is selling 2000 units of a good. It believes that the price elasticity of demand for the good is - 1.0. If the price is lowered to \$18, then the buyers would be expected to buy a) 1800 units b) 2000units c)

132. ## math homework

Michael went into a comic book store to pick up a few of his “much wanted” comics. There are about 4 different Batman issues, about 5 different Star Wars issues, and about 2 different Superman issues to choose from. Exactly how many combinations are

133. ## Discrete Math

There are 8 black balls and 8 white balls in a box and cannot be seen through: • How many balls must be picked up in order to guarantee there are three balls having the same color • How many balls must be picked up in order to guarantee there are three

134. ## Calculus

If 3(a,3,2)-2(3,b,b)=(-3,1,-2) determine a and b. Describe the set spanned by the vectors. I don't know how to answer this

135. ## Math

Find the volume of the solid generated by revolving the region bounded by y=x+(x/4), the x-axis, and the lines x=1 and x=3 about the y-axis. I've drawn the graph and I understand which part is being rotated, but I'm having trouble setting up the equation.

136. ## physics

just a question out of curiosity... Why is it that when you stretch a rubber band between your thumbs the same length both sides of the rubber band make two different sounds? Is it because the sound waves are at different velocities or frequencies?

137. ## Math

Mr. Register went out for enchiladas. After eating as much as he could consume the bill ended up being \$317.24( they were really good enchiladas, and there were alot of them)The tax rate is 8.5 % and a gratuity of 15% was automatically added ( after tax)

138. ## Math

For each of the following , simplify by combining like terms : 4x^3y+5x(6xy-7y^2) - 8y(9x^2-10xy) - 11xy^2

139. ## math

A bag contains 9 black marbles and 1 white marble. What is the probability of the event that is complementary to the event of drawing a black marble from the bag? a. 1/10 b. 1/9 c.8/9 d.9/10

140. ## Discrete Math

13 Define F as failed in the diagnostic test that P(F)=0.08 and A as failed in the real test. Given a student was failed in the diagnostic test, the probability he/she is also failed P(A|F)=0.90. The conditional given the student was not failed in the

141. ## Math

A department store received a shipment of dresses together with the bill for \$3245.50. Some of the dresses were not as ordered ,however ,and were returned at once. The value of the returned dresses was \$143.15 . The terms of the billing , provided the

142. ## Math

3xy - | x- 2 | when x = -1.3, y = 2/5

143. ## Algebra 1

(2y^-1)^2 ---------------- (4y)^-2 The answer is supposed to be 64 but I can't seem to get it. Thanks to anyone who can help!

144. ## Algebra

The following equation is quadratic. f(x)=(x-7)(3x-2) What are the x-intercepts of the graph of the related equation y=(x-7)(3x+2)? A) -7 and 2/3 B) -7 and 3/2 C) -3/2 and 7 D) -2/3 and 7

145. ## Math 12

What is the probability of being dealt four cards of a kind in a five card hand? I know it is 0.00024, but I need this as a fraction and I don't know how to do that.

146. ## Science

How does the structure of epithelial tissue function to prevent dehydration?

147. ## Math

Reduce the fraction: 5,040/59,400

148. ## Math

Shelly and Andy are playing a game using a number cube and flips the coin. What are all possible outcomes during one turn? How many outcomes are in the sample space?

149. ## Math

Use the order of operations to simplify each of the following : a) 4*3^3- 54÷6+5^2 b)314-3 [2^5 -(9- 4 ) ^2 +3]^2

151. ## Math

For each of the following, simplify by combining like terms : a) p ( q - r ) - q ( p -r ) - r ( p -q ) b) 23ab - 12bc^2 - 12ba - 13bc^2

152. ## Math

Which of the following expressions is equivalent to (-2x^5 y^2)^4 A. -16x^20 y^8 B. -8x^10 y^8 C. -8x^9 y^6 D. 16x^9 y^6 E. 16x^20 y^8

153. ## English

1. We can turn off the switch when we go out home. 2. We can turn off the switch when we go out of home. 3. We can turn off the switch when we go out of my home. 4. We can turn off the switch when we go out of our home. --------------- Are these sentences

154. ## Math

A square which is 7 inches on a side is removed from a triangle which is a base and height of 14 inches. What is the area of the remaining region?

155. ## Health

Which medication for the treatment of alcohol abuse has been approved by the Food and Drug Administration? A. Baclofen B. Acamprosate C. Topiramate D. Quetia C ?

156. ## Math

Which is NOT true about the Table? x: 1 | 2 | 3 | 4 | y: 1 | 4 | 9 | 16 | A. it shows a linear function B. x increases by 1 each time C. the rate of change is not constant D. y increases by a different value each time D please check

157. ## cultural diversity

what is a metalinguistic strategy designed to shape a child's concept of print

158. ## Science

Does the circulatory system make hormones, or merely distribute them after they are made in endocrine tissues?