# Questions Asked onApril 4, 2014

1. ## Algebra

A community group is planning the expansion of a square flower garden in a city park. If each side of the original garden is increased by 9 meters, the new total area of the garden will be 169 square meters. Find the length of each side of the original

2. ## Algebra

A physics student stands at the top of hill that has an elevation of 37 meters. He throws a rock and it goes up into the air and then falls back past him and lands on the ground below. The path of the rock can be modeled by the equation y = –0.02x² +

3. ## Physics

An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 4.5× 104 kg, and the force causes its speed to change from 7000 to 5000m/s. (a) What is the work done by the

4. ## Algebra - help

A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = –0.06x² + 9.6x + 5.4 where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters,

5. ## statistics

Dylan wants to determine a 90 percent confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must he have to get a margin of error less than 0.03? [To find n, use the

6. ## Calculus Help

When a foreign object lodged in the trachea (windpipe) forces a person to cough, the diaphragm thrusts upward causing an increase in pressure in the lungs. This is accompanied by a contraction of the trachea, making a narrower channel for the expelled air

7. ## math

The Smiths want to buy a 9 ft. by 12 ft. carpet and center it in a 15 ft. by 20 ft. room. Can a 3 1/2 foot by 12 foot couch be placed against one of the long walls of the room without touching the carpet?

8. ## science

Which of the following examples does not demonstrate a change in velocity? An elevator slows down in order to stop at the top floor ← A cruise ship travels west at a constant speed A soccer ball is passed across the field or ← A train remains at a

9. ## science

which of the following examples does not demonstrate a change in velocity? an elevator coming to a stop as it reaches the top floor a cruise ship heading west at a constant speed a soccer ball passed across the field a train remains at a constant speed as

10. ## Algebra

Solve the equation using the Zero Product Property. (3x + 1)(x – 5) = 0 • and 5 • and –5 • and 5 • and –5

11. ## Algebra

Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. x² – 21 = –4x • 7, 3 • –7, 3 • 7, –3 • –7, –3

12. ## physical science

Which of the following pairs of objects would have the strongest gravitational pull? two buildings in the same city ← two tall buildings in different cities two stars very far away from each other two stars very close to each other my answer is c

13. ## science

Which of the following pairs of objects would have the strongest gravitational pull? two buildings in the same city ← two tall buildings in different cities two stars very far away from each other two stars very close to each other my answer is c

14. ## Algebra

DeSean throws a ball up with an initial vertical velocity of 30 feet per second from a platform that is at ground level. How long will the ball be in the air?

15. ## Physics, science

An electric kettle contain 1.5kg of water at 100 degree and powered by a 2.0kw electric element. He the thermostat of the kettle falls to operate, approximately how long will the kettle boil dry? (take the specific latent heat of vaporization of water as

16. ## physics

Two manned satellites approaching one another at a relative speed of 0.500 m/s intend to dock. The first has a mass of 3.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. Assume that the positive direction is directed from the second satellite

17. ## math

The PJC department of McIntyre Company shows gross sales of $730,600 for computer supplies and$934,900 for general office supplies. It has determined that computer supplies cost $534,000 and that general office supplies cost$391,400. What is the total

18. ## MATH

Ella ordered 16 pizzas for a p. After the party,, there were 3 5/8 pizzas left. How much pizza was eaten? solve the problem

19. ## Statistics

The heights of 18 year old men are approximately normally distributed, with a mean of 67 inches and a standard deviation of 5 inches. What is the probability an 18 year old man selected at random is between 66 and 68 inches? Use FOUR decimal places.

20. ## Science

5.00 mol of solid A was placed in a sealed 1.00-L container and allowed to decompose into gaseous B and C. The concentration of B steadily increased until it reached 1.10 M, where it remained constant. Then, the container volume was doubled and equilibrium

21. ## Statistics

You take a trip by air that involves three independent flights. If there is an 67% chance each specific leg of the trip is on time, what is the probability all three flights arrive on time? (Round your answer to 3 decimal places.) Probability =??

22. ## Algebra

I can't figure this out.. A physics student stands at the top of hill that has an elevation of 37 meters. He throws a rock and it goes up into the air and then falls back past him and lands on the ground below. The path of the rock can be modeled by the

23. ## Biographical Essay Evaluation (Writeacher)

Write a 3-paragraph Biographical Essay. Discuss your experiences with summer: the things you enjoyed and the things you missed about school. What I have written: "A strong sense of freedom is one of my favorite things about summer. It rids me of the stress

24. ## Physics

An infinitely long thin metal strip of width w=12cm carries a current of I=10A that is uniformly distributed across its cross section. What is the magnetic field at point P a distance a=3cm above the center of the strip? I have tried using the integration

33. ## Statistics

You take a trip by air that involves three independent flights. If there is an 67% chance each specific leg of the trip is on time, what is the probability all three flights arrive on time? (Round your answer to 3 decimal places.) Probability=

34. ## grammar

The hospitalization was prolonged because of the absence of any good choices for oral medications to treat his UTI.

35. ## alg

Sound intensity (loudness) varies inversely as the square of the distance from the source. If a rock band has a sound intensity of 100 decibels 25 feet away from the amplifier, find the sound intensity 50 feet away from the amplifier.

36. ## Science

Discuss how the structure of a virus correlates with its function.

37. ## Math

one fourth of a box of cereal was shared equally among 3 people how much cereal did each person get ?

38. ## Physics

A pitcher throws a 0.192-kg baseball, and it approaches the bat at a speed of 43.2 m/s. The bat does 69.8 J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 32.6 m above the

39. ## English

Determine the Narrator's perspective The huge man dropped his blankets and flung himself down and drank from the surface of the green pool. The small man stepped behind him. "Lennie!" he said sharply, got God sakes don't drink so much." Lennie continued to

40. ## science

what doesn't have to be measured in order to describe motion

41. ## algebra

divide 15x^2 + 10x -5 by 5x

does the function satisfy the hypotheses of the Mean Value Theorem on the given interval? f(x) = 2x^2 − 5x + 1, [0, 2] If it satisfies the hypotheses, find all numbers c that satisfy the conclusion of the Mean Value Theorem. (Enter your answers as a

43. ## Math, Geomertry

A total solar eclipse occurs when the moon passes between the earth and the sun, and the darkest shadow cast by the moon, called the umbra, hits the surface of the earth. If the umbra does not hit the surface, as shown in the following figure, then a total

44. ## Math

The percent grade of a highway is the amount that the highway raises or falls in a given horizontal distance. For example, a highway with a four percent grade rises 0.04 mile for every 1 mile of horizontal distance. a. How many feet does a highway with a

You take a trip by air that involves three independent flights. If there is an 67% chance each specific leg of the trip is on time, what is the probability all three flights arrive on time? (Round your answer to 3 decimal places.) Probability=

46. ## English

1. Stop at the red light. 2. Stop on the red light. (Which preposition should we use?) 3. Turn slightly right. 4. This is a one-way street. (Are both grammatical?) 5. Fill it up with regular unleaded, please. 6. Fill her up with regular, please. 7. Fill it

47. ## Maths

If the 7th term of an AP is twice the third term and the sum of the first four terms is 42

48. ## chemistry

Plan how you would make 100mL of a buffer solution with a pH of 10.80 to be made using only sodium carbonate, sodium hydrogen carbonate and water. You should specify the amount of sodium carbonate and sodium hydrogen carbonate that you would use. Below is

49. ## Physics

a 5 kg crate falls from a height of 2.0 m into an industrial spring scale. When the crate comes to rest the compression of the spring is 24 cm. what is the spring constant?

50. ## Math

Each square represents 625 square feet, each line segment represents 25 feet. A galapagos tortoise must use 550 feet of fencing to enclose a space of 15,000.

51. ## chemistry/science

Not sure if i posted this but Need help with my pH calculations? 0.10 mol of solid sodium hydrogen carbonate and 0.20 mol of solid sodium carbonate are dissolved in the same beaker of water, transferred to a volumetric ﬂask and made to 250.0 mL. The Ka

52. ## Sentence Completion

Which word best completes this sentence? 1. Although the biographer claimed to admire his subject, his writing had a ______ tone. A. Tumultuous B. Sentimental C. Condescending D. Poignant I think the word that best completes this sentence is either a. or

53. ## English

Determine the narrator's perspective Harold Davis took a deep breath and slowly started to peel the gauze from the wound on his grandmother's leg. "Hold on Grandma. I'm almost done," he said quietly. "Don't worry, baby. It doesn't hurt too much," she

54. ## Math, Geometry

The percent grade of a highway is the amount that the highway raises or falls in a given horizontal distance. For example, a highway with a four percent grade rises 0.04 mile for every 1 mile of horizontal distance. a. How many feet does a highway with a

55. ## Statistics

A survey of top executives revealed that 37% of them regularly read Time magazine, 21% read Newsweek and 38% read U.S. News & World Report. Eleven percent read both Time and U.S. News & World Report. What is the probability that a particular top executive

56. ## Science/Biology

Please check my answers: 1. Which of the following correctly states the relationship between monkeys and humans? A. Humans and monkeys evolved from apes. B. Humans evolved from monkeys. C. Humans and monkeys evolved from the same ancestor, which is now

83. ## PC

A piece of a broken wheel is shown. It was taken to a machine shop to be replaced with a new “whole” wheel. Find the radius of the wheel AC=10cm, BD=3 cm and D is the midpoint of AC. Round to the nearest hundredth.

84. ## Biographical Essay Evaluation (Writeacher)

Write a 3-paragraph Biographical Essay. Discuss your experiences with summer: the things you enjoyed and the things you missed about school. What I have written: "A strong sense of freedom is one of my favorite things about summer. It rids me of the stress

85. ## English

Determine Narrator's perspective They were standing under a tree, each with an arm round the other's neck, and Alice knew which was which in a moment, because one of them had "DUM" embroidered on his collar, and the other "DEE." "I suppose they've each got

86. ## English

Determine the narrator's perspective Harold Davis took a deep breath and slowly started to peel the gauze from the wound on his grandmother's leg. "Hold on Grandma. I'm almost done," he said quietly. "Don't worry, baby. It doesn't hurt too much," she

87. ## science

How can water cause both mechanical and chemical weathering?

88. ## maths

Find the lenght of the arc from t : 2 to t : 6 for x : 5t-3.y : 1 -3t, z : 4t 5.

89. ## PreCal

Solve Using Log Properties: 1/4 = 8^3x+5

90. ## science

what type of friction does a maglev train reduce

91. ## Calculus

Find the polynomial end-behavior asymptote in the graph of f(x)=(2x^3 +6x-1)/(x+2)

92. ## science

Develop hypotheses predicting the effect of pyrite and coal on the acidity of water?

93. ## algebra

Simplify (2/3k)+(k/k+1) divided by (k/k+1) -(3/k)

94. ## Algebra

What is the value of c so that y = x² + 9x + c is a perfect square trinomial?

95. ## math

Put 0.25 1/3 3/4 & 49% in order from least to greatest

96. ## economics

what are welfare payments or consumer subsides

97. ## math lit,business studies,accounting and computer

Can I be an accountant when doing these subjects?

98. ## Social Studies

Read the speech below. It is a fictitious political speech by Peter, a candidate for the upcoming national election. Then answer the following questions: List all of the arguments in the speech List all of the non-arguments in the speech List all of the

99. ## Chemistry

When you write rate laws, can you have a half-order?

100. ## Persuasive Speech

I am doing a speech on why my college should add more bus shelters to the bus stops. So far I have a few points about more students using buses so less pollution and protecting students from the elements, talking about how if they are dressed nice for a

101. ## science

how the structure of a virus correlates with its function.

102. ## English

Determine the Narrator's perspective The previous night, make your plans for the next day and write them down...If you attend an exclusive Samurai's party and feel timid, you cannot do your part in making it a successful party. You had first better prepare

103. ## Statistics

The National Center for Health Statistics reported that of every 894 deaths in recent years, 25 resulted from an automobile accident, 185 from cancer and 309 from heart disease. What is the probability that a particular death is due to an automobile

104. ## English

Determine the Narrator's perspective The previous night, make your plans for the next day and write them down...If you attend an exclusive Samurai's party and feel timid, you cannot do your part in making it a successful party. You had first better prepare

105. ## Physics

If an object has a work of 300J and a displacement of 20m, how would I determine the net force?

106. ## PHYSICS

A grinding wheel 0.3m in diametre has amass of 5kg is rotating at an angular velocity of 2300rev/min.what is the kinetic energy?

107. ## PHYSICS

A grinding wheel 0.3m in diametre has amass of 5kg is rotating at an angular velocity of 2300rev/min.what is the kinetic energy?

108. ## Algebra

Find the solutions to the system. y = x² + 5x + 6 y = 4x + 12 (1 point)

109. ## Algebra need help

I do not know how to do this - also please explain... What is the value of c so that y = x² + 9x + c is a perfect square trinomial?

110. ## L.A

Educating and caring for young children in changing society?

111. ## PreCal

Please Can Someone Help Me Solve For x Using Log Properties: log(base 3) x*(x-80)=4

112. ## helath

The MTF survey has measured drug, alcohol, and cigarette use and related attitudes among adolescent students nationwide. What does MTF stand for? A. Monitoring the future B. Managing the functioning addicts C. Mentoring the future D. Maintaining the

113. ## physical science

is an elevator slowing down as it reaches the top floor a change in velocity?

114. ## Math

The curvature of a circle with radius r is defined as Descartes’ formula gives a relationship between the curvatures of the four circles. What are Descartes’ formula and the curvature of a circle? What does the sign of the curvature of a circle mean?