# Macy

Popular questions and responses by Macy
1. ## Statistics and Probability

Winning the jackpot in a lottery requires that you select the correct three numbers between 1 and 51 and in a another separate drawing you must select the correct single number between 1 and 15. Find the probability of winning the jackpot- The probability

2. ## algebra

Rectangular pyramid has a base area of x^2+3x-10/2x square centimeters and a height of x^2-3x/x^2-5x+6 centimeters. Wright a rational expression to describe the volume of the rectangular pyramid

3. ## Physics

An infinite,insulating sheet has a surface charge density 3.14C/m^2 the height is 12km A.) find the surface area of the Gaussian surface B.) find the total charge C.) find the total electric flux D.) use Guass's law to find the electric field at a height

4. ## Biology

Will you please check my answers? 1. Single-celled organisms that do not have a membrane-bound nucleus are called A. organelles. B. prokaryotes. C. Golgi bodies. D. eukaryotes. 2. In cells, a form of active transport is A. a sodium-potassium pump. B.

5. ## Science

This graph shows the changes in two populations of herbivores in a grassy field. In the y axis it says number of organisms in the x- axis it says Time In the graph A is decreasing , B is increasing, At first they were steady then slightly A decreased and B

6. ## math

Eve swam 80 laps of a swimming pool in one hour. What was the pace for each lap?

7. ## Algebra

The ratio of the weight of an object on Mars to the weight of an object on Earth is 0.4 to 1. How much would a 120-lb astronaut weigh on Mars?

8. ## Math

A phone company offers two monthly plans. Plan A costs \$11 plus an additional \$0.18 for each minute of calls. Plan B costs \$18 plus an additional \$0.13 for each minute of calls. For what amount of calling for the two plans cost the same? What is the cost

9. ## Statistics

An instructor asked students to name their favorite color. An appropriate graph to display the data is a... A) histogram B) pie chart C) time plot

10. ## Math

The value of a particular investment follows a pattern of exponential growth. You invested money in a money market account. The value of your investment t years after your initial investment is given by the exponential growth model a=2600e^.08t. How much

11. ## Statistics

Find the probability of winning a lottery with the following rule. Select the five winning numbers from 1,2...,23. (in any oder. No repeats) P(winning)= ?

12. ## Algebra 1

The amount a spring will stretch S is proportional to the force (or weight) F attached to the spring . If a spring stretches 8.9 inches when 20 pounds are attached how far will it stretch when 70 pounds are attached? A:3.54 inches B:2.54 inches C:31.15

13. ## Consumer Math

Will you please check my answers? 1. Your employer has 600 business cards printed for you, and you give away 280 of them. To the nearest hundredth, what percent of the cards is left? A. 18.75% B. 53.33% C. 46.67% D. 21.43% 2. The LCD for the fractions 1/3,

14. ## Living environment

A characteristic shared by both predators and parasites is that they 1. feed on decomposing plant material 2. capture and kill animals for food 3. live inside their hosts 4. attack a living food source the answer is 2 right

Emma has 36 feet of fence. She wants to make the largest rectangular area possible for her rabbit to play in. What length should she make each side of the rabbit pen? Show your work and explain how you found the largest area.

16. ## Math

The function of g += t^2-t represents the total number of games played by t teams in a sports league in which each team plays each of the other teams twice. The Metro League plays a total of 132 games. How many teams are in the league?

17. ## english

In her essay "what is poverty?" jo parker goodwin tries to convince the reader to help the poor. What 3 strategies did she use to achieve her goal?

18. ## maths

8 cleaners can clean an office block in 3 hours. If two cleaners are off ill,how long will it take the rest to clean the block.

19. ## Biology

If the number of ___ in an atom is changed, an ion will be produced. a)proton b)neutron c)electron Could be multiple answers

20. ## Physics

Find the work that should be done to increase the distance between two point charges with the charges of 5nC and -10nC by 5cm. The initial distance between the charges is 15cm.

21. ## Physics

Find the potential energy of a system often point charges. 7nC and 2nC separated by 0.03m

22. ## physics

A man holds a 194-N ball in his hand, with the forearm horizontal (see the figure). He can support the ball in this position because of the flexor muscle force , which is applied perpendicular to the forearm. The forearm weighs 24.7 N and has a center of

23. ## Math

A satellite is launched into orbit 200 kilometers above the Earth.The orbital velocity of a satellite is given by the formula v=√GmE/r, where v is the velocity in meters per second, G is a given constant, mE is the mass of Earth, and r is the radius of

24. ## algebra

292 tickets were sold for a high school basketball game. An adult ticket cost \$3.00. A student ticket costs \$1.00. Ticket sales were \$470.00. How many adult tickets were sold

25. ## health

Is it healthy to skip meals? like if I were to start skipping breakfast and lunch, but eat dinner.

26. ## maths

which name quadrilateral cannot be built from exactly two isosceles triangles?

27. ## maths

Russel, Sarah, and Terry share money in the ratio 2:5:8. Russel gets 120 pounds less than Terry. Workout how much each get.

28. ## maths

Russel, Sarah and Terry share money in the ratio 2:5:8. Sarah has £120. Workout how much Russel and Terry get.

29. ## maths

10 men can build a house in 6 months, how many men would it take to build the house in 4 months?

30. ## maths

A 50g chocolate bar costs 60p. how much does each gram cost?

31. ## maths

If there are 10 numbers in a list where is the number that (a)halfway: (b)a quarter of the way: (c)three quarters of the way:

32. ## Data

A manufacturing company produces lenses for digital cameras. The defect rate for each lense is 9%. Which of the following testing procedures will result in more production stops? Procedure A: The company will test 10 lenses per hour, and stops production

33. ## Data

A deck of cards has the aces and face cards removed, so that the numbered cards 2-10 remain. The player draws a card and is paid the value of the card. Each play costs \$5. If you play the game 20 times, how much money would you expect to win or lose

34. ## Data

Determine the odds of choosing 4 aces when drawing 4 cards randomly from a regular deck of cards.

35. ## math

Find the asymptotes of the hyperbola. (x^2/36) - (y^2/49) = 1

36. ## algebra 1

Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2 +

37. ## math

if you have 69868859958 and 54647937347484 what would you do to turn that into a fraction

38. ## Biology

* what do organisms needs ? * how do organism secure what they needs ? * what are the attributes of life ?

39. ## Calculus

Find the volume of the solid bounded below by the parabloid z = x^2 + y^2 and above by the plane 2x + z = 3

40. ## math

Justine's typing speed is 36 wpm (words per minute). She finished a job in 5 hours. How long would the same job have taken her if she typed 48 wpm?

41. ## Chemistry

What would be the equation for NaOH + H2SO4 be? Would the porducts be H2O + NaHSo4 or H2O + Na2SO4? If it's the second one, which I think it is, where does that extra H go?

42. ## Anthropology

Why is the scientific method the most accurate way that humans have developed?

44. ## Algebra

(x+5)^2 -(x-5)^2= Simplify. Help please :)

45. ## Math

I need help with these few questions on my homework please :) 1. How much money would you need to pay to receive a payout annuity of \$8,503.05 annually for 10 years, assuming your money earns 7.5% compounded annually? Assume that your payments increase

46. ## Math

I need help with these few questions on my homework please :) 1. How much money would you need to pay to receive a payout annuity of \$8,503.05 annually for 10 years, assuming your money earns 7.5% compounded annually? Assume that your payments increase

47. ## Algebra

Simplify each expression. 1.) (b^ 1/6)^3 b^1/6 2.) (2x^-3)^2 (0.2x)^2 3.) (3^7)^2 (3^-4)^3

48. ## Physics

A parallel plate capacitor has a rectangular plates with length 5cm and width 3cm. They are separated by a distance 12m and hooked up to a 20V battery A.) what is the area of each plate in m^2 B.) assuming nothing else is present on the circuit what is the

49. ## Physics

A long insulating wire has a uniform charge density 7nC/m and r=3m away from the wire A.) surface area of the side of the Gaussian surface B.) find total charge enclosed by the Gaussian surface C.) find total electric flux D.) use Guass's law to find the

50. ## Statistics and Probability

I took a large sample of households in a city, and based on that, estimate the standard deviation of the income for all households in the city is \$800. In order to make a desired conclusion about the income for all the households in the city, I want the

51. ## Statistics

I took a large sample of households in a city, and based on that, estimate the standard deviation of the income for all households in the city is \$800. In order to make a desired conclusion about the income for all the households in the city, I want the

52. ## Statistics

A linear regression of price on square footage of homes for sale found the equation price = 30275 + 144*sqft. In this equation, the slope means A. a house with no square feet will cost \$30,275. B. for every 144 square feet, average price goes up \$30,275.

53. ## Biology

The nucleus of an atom will NOT contain a)proton b)neutron c)electron could be multiple answers

54. ## Biology

The chemical reactivity of an atom is determined by the number of ___ present. a) proton b) neutron c) electron could be multiple answers.

55. ## Biology

A change in the number of ___ will change the mass of a given atom. a)proton b)neutron c)electron

56. ## Biology

if the number of ____ in an atom is changed, it is no longer the same element. a)proton b)neutron c)electron I'm thinking it's A, what do you think? It could be multiple answers, too.

57. ## Physics

Suppose you have a 5nC charge T the origin and a 2nC charge at x=5m. Find the location on the x axis where the electric field is 0. (Find finite coordinate location)

58. ## Physics

Suppose you have a 3 C charge at (1,0) m and a -3 C charge at (-1,0) m. Find (a) the electric field at the point (0,3), and (b) the electric force on a charge of 3 nC placed at (0,3).

59. ## Statistics

A survey or college students collected information on several variables: distance from home, age, major, gender, and class. The variable major is A) neither categorical nor numerical B) categorical C) quantitative Please help :)

60. ## Statistics

When ordering vinyl replacement windows, the following variables are specified for each window. Which of these variables is quantitative? A) window style- double hung, casement, or awning B) window style- single pane or double pane C) area of the window

61. ## Psychology

Individuals who naturally exhibit low levels of brain arousal and nervous system reactivity are more likely to: A. Score high in measures of agreeableness B. Score low in measures of agreeableness. C. Score low in measures of sensation seeking D. Score

62. ## Psychology

The areas of the hemisphere involved in speech and language tend to be large in ____. The areas of the parietal lobe involved in visuospacial processing tend to be larger in ____ a) women, women b) men, men c) men, women d) women, men

63. ## Psych

The areas of the hemisphere involved in speech and language tend to be large in ____. The areas of the parietal lobe involved in visuospacial processing tend to be larger in ____ a) women, women b) men, men c) men, women d) women, men

64. ## Psychology

Because of differences in brain size, men tend to have slightly higher IQ scores than women TRUE OR FALSE

65. ## Psychology

Sexual dimorphism's are a) observable physical differences within single gender (e.g. tall men vs short men.) b) observable physical differences between the genders (e.g differences in mens and women's brains) c) assumed differences in the capacities of

66. ## Statistics

Find the probability of winning the lottery Select the six winning numbers from 1 to 34. (in any order, no repeats) P(winning)= ?

67. ## Probability

Must appoint 5 different members. There are 17 who are qualified. How many different ways can they be appointed?

68. ## Stats

In designing an experiment involving a treatments applied to 5 test subjects, researchers plan to use a simple random sample of 5 subjects from 28. How many different simple random samples are possible?

69. ## Physical Science

Superfly, mass of only 1 gram, but capable of flying 840 million km/hr. meets a locomotive with a mass of 20,000 kg, traveling 40 km/hr. Who has the greater momentum? I know I need to convert mass to kg and covert momentum in Kg-Km/hr. I just don't know

70. ## Physical Science

Johnson ran the 100 meter dash in 9.79 seconds. Calculate Johnson's average speed, in meters/second.

71. ## Physics

You take a 10 N block and lift it 1 meter vertically from the floor and then place it back down on the floor. How much work do you do during this motion? W = F x d x cos(theta) So lifting it does work and the lowering it does negative work won't that

72. ## Anthropology

what does this statement mean : " the purpose of anthropology is to make the exotic familiar and the familiar exotic".

I have a SUPER HUGE project due called National History day and need lots of help with it, plz plz plz help!!!!!

74. ## Math

Will you please check my answers? 1. Mary Stevens earns \$6 an hour at her job and is entitled to time-and-a-half for overtime, and double time on holidays. Last week she worked 40 hours of regular time, 6 1/2 hours of overtime, and 8 hours of holiday time.

75. ## Consumer Math

Will you please check my answers? 1. Mary Stevens earns \$6 an hour at her job and is entitled to time-and-a-half for overtime, and double time on holidays. Last week she worked 40 hours of regular time, 6 1/2 hours of overtime, and 8 hours of holiday time.

76. ## Math

The base of a ladder leaning against a house is 30ft from the wall. if the ladder reaches 40ft high on the wall , how long is the ladder?

77. ## IMPERIALISM AND THE PROGRESSIVE ERA

_______ pioneered the field of corporate public relations. A. Henry Ford B. Ivy. L. Lee C. Samuel Gompers D. Margaret Robins

78. ## IMPERIALISM AND THE PROGRESSIVE ERA

_______ pioneered the field of corporate public relations. A. Henry Ford B. Ivy. L. Lee C. Samuel Gompers D. Margaret Robins

79. ## Calculus

The line y=2x+b is tangent to the graph of y=x^1/2 at the point P=(a, a^1/2). Find P and determine b. I don't know what to do because they don't give you the x coordinate or anything to plug into the derivative. Help?

80. ## Info literacy

Which of the following sets of Dewey Decimal call numbers is in the correct order? A. 010.1 ABR, 004.15 KWA, 100.01 PRO, 100.1 BLU B. 004.15 KWA, 010.1 ABR, 100.01 PRO, 100.1 BLU C. 100.1 BLU, 010.1 ABR, 004.15 KWA, 100.01 PRO D. 100.01 PRO, 100.1 BLU,

81. ## mc questions

Question # 1-What is the magnitude of the momentum of a particle of mass 2 kg with a speed of 5 m/s? a)2.5 kg m/s b)10 kg m/s c)3 kg m/s d)7 kg m/s Question # 2-If two objects with different masses collide and bounce off each other, the one with the

82. ## algebra

Which has a larger perimeter ,a 20-inch by 32-inch rectangle or a 28-inch square

83. ## GLOBAL HISTORY

how did the black death lead to social disorder

when two different species live in the same area and use the limited resources, which of the following will occur? (1) competition (2) succession (3) parasitism (4) industrialization is it succession ?

85. ## Calculus

Let R be the square region bounded by y = 2, x = 2, and the x and y-axes. When R is rotated about the x-axis, what is the volume of the resulting solid? What is the volume of the solid generated by rotating R about the y-axis?

86. ## Calculus

Let R be the region bounded by the x-axis, x = 5 and the curve y = x. This region is rotated around the x-axis. Find the volume of the resulting solid. (Note: R is a triangular region. The resulting solid has a simple shape. You may ask me if you are

87. ## Math

Need help with the below math please tell how you could use a number line to determine which of two numbers is greater.

88. ## Social Studies(Thesis)

I read all about thesis and i made my thesis about child labor At what age is it appropriate for a child to have a job and a child should have a right to freedom. That is my thesis is it correct yes or no THANKS

89. ## Social Studies(child Labor)

i found this poltical cartoon why is this fat man eating kids i think because the fat man is just taking the kids rights and the fat man is making them work is this correct???

90. ## Social Studies(child Labor)

i was seeing the poltical cartoon with the child labor exploiter and i need help interpet

i need some child labor political cartoons

92. ## ELA

I NEED A SUMMARY OF THE BOOK FRINDLE I CANT FIND THE BOOK PLEASE HELP AND CAN YOU JUST SUMMARIZE THE CHARACTERS

93. ## History

A policy on how to handle things within a state or country What is it?

94. ## MATH

regular pentagon Side length(inches) 6 If its 6 what is the perimeter( inches)

95. ## chemistry

At l=530 nm:aCuSO4=7.544L/mol-cm aKMnO4= 3.645 L/mol-cm At l=800nm: aCuSO4=2.908L/mol-cm aKMnO4= 5.412L/mol-cm you use a celleith a path length of 1.0cm An unknown solution containing both CuSO4 and KMnO4 gave an absorbance reading of 0.679 at 530nm and an

96. ## Math

The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean weight of the 100 children

97. ## math

What does "find the sum" mean? Please provide an example.

98. ## Algebra

A basketball team has 12 more games to play. They have won 25 of the 36 games they have played. How many more games must they play in order to finish with a 0.750 record?

99. ## Social Studies

This is just out of curiousity: Are butter and margarine substitute goods?