# Kaitlyn

Popular questions and responses by Kaitlyn
1. ## Calculus

Suppose that 5 J of work is needed to stretch a spring from its natural length of 28 cm to a length of 36 cm. (a) How much work is needed to stretch the spring from 32 cm to 34 cm? (Round your answer to two decimal places.) (b) How far beyond its natural

2. ## math

The sum of seven and the quotient of a number x and eight.

3. ## Calculus

Graph the curve. Find the exact length of the curve. x = 2et cos(t), y = 2et sin(t), 0 ≤ t ≤ π

4. ## Algebra

The stopping distance D in feet for a car traveling at x miles per hour is given by d(x)= (1/12)x^2+(11/9)x. Determine the driving speeds that correspond to stopping distances between 300 and 500 feet, inclusive. Round speeds to the nearest mile per hour.

5. ## Geometry - Area

Find the area of a regular hexagon with an apothem 10.4 yards long and a side 12 yards long. Round your answer to the nearest tenth.

6. ## World Geography

1.Which of the following demographic characteristics distinguishes Europe's population from that of Asia? A.) More Europeans inhabit rural areas. B.) The European population is much younger. C.) Europeans are more concentration in urban areas. D.) Europe

7. ## Chemistry

If argon has a volume of 5.0 dm3 and the pressure is .92 atm and the final temperature is 30 degrees celcius and the final volume is 5.7 L and the final pressure is 800 mm Hg, what was the initial temperature of the argon?

8. ## Algebra 2

Write the Expression as a complex number in standard form. 5i(3+2i)(8+3i)

9. ## World Geography

1. During the late 18th and mid-19th centuries, Europeans and North Americans were attracted to nearby coastal waters due to potential economic gains from? A.) Catching trout and cod fish. B.) Catching seals and whales. C.) Shipbuilding. D.) Finding riches

10. ## Math

An aluminum cylindrical juice can has a height of 4 in. and a radius of 6 in. How many square inches of aluminum are needed to make the can?

11. ## geometry

B is the midpoint of AC. A has coordinates (-3,4), and B has coordinates (-1 1/2,1). Find the coordinates of C. Did i get the right answer? (2)-1 1/2=(2)-3+x(over 2) -3-3=3+x-3 -6=x (2)1=(2)4+y(over 2) 2-4=4+y-4 -2=y The coordinates of C are (-6,-2)

12. ## physics

A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 210 N and is 2.80 m long. What is the tension in each rope when the 710 N worker stands 1.80 m from one end? smaller and larger.

13. ## Calculus

Use Simpson's Rule with n=10 to estimate the arc length of the curve. Compare your answer with the value of the integral produced by your calculator. x = y + y^(1/2), 1 ≤ y ≤2

14. ## physics

A military helicopter on a training mission is flying horizontally at a speed of 75.0m/s when it accidentally drops a bomb (fortunately, not armed) at an elevation of 310m . You can ignore air resistance. a:How much time is required for the bomb to reach

15. ## Science Help Plz

which of the following statements about earths atmosphere is true? a. earths atmosphere contains 78 percent water vapor which is essential to life b. earhts atmoshpere contains 21 percent oxygen c. earths atmosphere contains carbon dioxide which all life

16. ## psychology

8. Cognitive psychology can best be described as:

17. ## Math

An odd number is less than 160 and has exactly three defferent prime factors. What is the number? Explain your reasoning. ??? AAAH! help!

18. ## Science

thermal energy is cause by the motion of ?

19. ## Chemistry

How many moles of carbonate ions, aluminum ions, and oxygen atoms are present in 39.0 g aluminum carbonate?

20. ## Chemistry

Assume the reaction of 55.25 g of Ge in the following reaction to determine the other quantities. 3Ge + 2N2 -> 1Ge3N4

21. ## Chemistry

N2+3H2-> 2NH3 how many moles of hydrogen are needed to completely react with 2.6 moles of nitrogen?

22. ## AStronomy/ Math

I do not understand how to do one of my online homework questions: What is the Schwarzschild radius of a 100 million-solar-mass black hole? The mass of the Sun is about 2 × 1030 kg, and the formula for the Schwarzschild radius of a black hole of mass M

You have \$59.95 in your wallet and want to buy some new CDs. If the CDs are \$11.99 each, what number of CDs, x, can you buy? Write and solve an inequality. My answer: 11.99x ≤ 59.95 11.99x/11.99 ≤ 59.95/11.99 x ≤ 5

24. ## Geometry

1.) A skateboard ramp has a 158° entry angle. Find the measure of ∠1. 2.) Which of the following equations is parallel to the line passing through A(-2, 7);B(-2, -2)? 3.) Which of the following equations would graph a line parallel to 3y = 2x - x + 5?

25. ## chemistry

Determine whether a solid forms when solutions containing the following salts are mixed. If so, write the ionic equation and the net ionic equation. KCl and Na2S

26. ## Algebra 1

d is to 4 as 32 is to 56. if answer is a fraction change to decimal

27. ## Algebra 1

A triangle has a perimeter of 81 inches. The side lengths can be found by x, 3x-1, and 4x+2 what is the value of x?

28. ## Math

What is an algebraic expression for "49 more than q"

29. ## Algebra

A motorcycle breaks down and the rider has to walk the rest of the way to work. The motorcycle was being driven at 45mi/hr and the rider walks at a speed of 6mi/hr. Teh distance from home to work is 25 miles and the total time for the trip was 2 hours. How

30. ## Physics Inertia!

Rank from fastest to slowest. a)a solid ball rolling down a ramp without slipping b)a cylinder rolling down the same ramp without slipping. c)a block sliding down a firctionless ramp with the same height and slope. Select all that apply. The ball is

31. ## Astronomy

If we assume the Sun is made totally out of hydrogen, how many hydrogen atoms are contained with the Sun? If the Sun converts half of these hydrogen atoms into helium over its lifetime of about ten billion years, how many hydrogen atoms are converted per

32. ## Chemistry

Write the balanced camical equation for the complete combustion of propane C3H8, a fuel used in gas grills (carbon dioxide and water are products). This is the WRONG answer that I got... 2(C3H8) + 7(02) -> 3(CO2) + 8(H20) Can anybody help me? 2(C3H8) +

33. ## algebra

So... I know the answer to the question because it's something we worked on in class... but there's one part I don't get. Factoring m - 2n + m^2 - 4n^2 m - 2n + (m + 2n) (m - 2n) Then there's a 1... 1(m - 2n) (m + 2n) (m - 2n) AND my question is... How and

34. ## Science

under which conditions are clouds formed from ice crystals?

35. ## Art

What did the Vogel's artworks communicate about their historical interests? They collected works that were culturally popular. They collected works that depicted revolutions. They collected works that depicted the history of cities. ( my choice ) They

36. ## Math

What is the composite figure? There is this trapezoid that has a triangle on the side. the base of the trapezoid is 17cm and the base of the triangle is 19cm, the height of trapezoid is 22 cm and 10cm on the other side, and the top of the trapezoid is

37. ## Physics

In the figure, the meterstick's mass is 0.130 kg and the string tension is 2.30 N . The system is in equilibrium. A) Find the unknown mass m. B) Find the upward force the fulcrum exerts on the stick. I found part A and the answer is .634kg but I can not

38. ## Math

Paige cuts a square out of a circular pizza. The corners of the square lie on the circumference of the pizza.to the nearest whole number, what percent of the pizza is left when paige removes the square.

39. ## Math

In scientific notation, what is the product of 1.2 × 10^3 and 1.4 × 10^2? Express your answer to two significant figures. Can you also explain how to do this? Thanks!

40. ## Math

The tires on a car are 25 inches in diameter. If the car is moving at a constant speed of 65 miles per hour, how many rotations per second is the front left tire making? Express your answer as a decimal to the nearest tenth. (1 mile = 5280 feet)

41. ## Calculus

Use Euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem given below. (Round your answer to four decimal places.) y' = 1 − xy y(0) = 0 I don't even know how to start!

42. ## Social Studies

witch result of the compromise of 1850 did not benefit the north? a-the fugitive slave law b-californias admittance tt he union c-ending the slave trade in the district of columbia d-new mexico not being designated as a slavery trade Is it a?

Discussing the future of management, Manager A maintains that we can expect a continued rise of virtual management and growth in technology. Manager B acknowledges that Manager A’s projections are likely, but incomplete. He adds that there will also be

44. ## physics

In the Bohr model of the hydrogen atom, an electon mass= 9.11 x 10^-31 kg orbits a proton at a radius of 5.29 x 10^-11 m. The proton pulls on the electron with a force of 8.20 x 10^-8N. what is the speed of the electron? what is the period of the electron?

45. ## math

Quinn used a scale drawing to build a soccer field near his school. Initially, he wanted the field to be 28 yards long and 17.5 yards wide. He decided to change the length of the field to 36 yards. If the width is to be changed by the same scale factor,

1. Write the equation for the horizontal line that contains point G(-8, 8). 2. What is an equation for the line that passes through points (-1, -4) and (1, 4)? Write the equation in slope-intersect form. 3. Write an equation for the vertical line that

47. ## math

1. A skateboard ramp has a 158º entry angle. Find the measure of ∠1. A.) 22º B.) 68º C.) 78º D.) 58º 2. Which of the following equations parallel to the line passing through A(-2, 7);B(-2, -2)? A.) y = -2 B.) y = x C.) 3x = 5 D.) -2x = 7y 3. Which

48. ## Math

Write an algebraic expression for "55 more than the product of 134 and n"

49. ## math

In a class of 50 students, 35 are Democrats, 17 are business majors, and 6 of the business majors are Democrats. If one student is randomly selected from the class, find the probability of choosing a Democrat or a business major.

A cube of wood and a cube of concrete, each 0.17 m on a side, are placed side by side. One of the long faces of the rectangular prism formed by the two cubes is held at 17°C, and the opposite long face is held at 32°C. What is the total rate of heat

51. ## Physics

A particle starts from xi = 10 m at t0 = 0 and moves with the velocity graph shown in the graph below. Sorry for no graph it's at 12 m/s when time is zero. Moves down consistently so that it is 8 at 1 4 at 2 0 at 3 and negative 2 at 4. (a) What is the

52. ## social studies

In 1963 Viginia's public schools opened their doors to:...

53. ## Algebra

Solve each system using substitution. Tell whether the system has one solution, infinitely solutions, or no solution. 1.) 2x + y = -12;-4x - 2y = 30 2.) 1/3y = 7/3x + 5/3;x - 3y = 5 3.) Y = X - 7;3x - 3y = 21

54. ## English

how does the setting of To Kill A Mockingbird influence the characters' traits, emotions, and motivations

55. ## social studies

Why were the Olympic Games held the first time?

56. ## Math

How do you convert Milligrams to grams?

57. ## Math

Can someone explain to me how to measure circles? Help

58. ## Math

how many sides does a cube have? Not faces!

59. ## English

What does overview mean?

60. ## Bible Journaling

how do you start bible journaling

61. ## math

what is the median for 25,26,31,39,32,57

62. ## Weather science

Which type of weather technology often carries cameras that can make images of Earth's surface, clouds, and snow cover?

63. ## Technology

What is intellectual property?

64. ## Science

what is precipitation, evaporation, condensation, and transpiration?

65. ## sports

is volleyball the best sport to play?

66. ## Health and P.E.

A dandruff shampoo claims it can eliminate all dandruff flakes for 6 months. Which would be a good strategy for proving the claim is true? A.) Ask the one person you know who used it to verify if it worked for her. B.) Ask the cashier if a lot of people

67. ## Christianity

Is God real? what evidence is there?

68. ## heath and pe

What reason do studies show why more people with high blood pressure and diabetes live In the suburbs than in the city? There is four answers that I don't know if their corect; 1.There are much better doctors in the city who treat those diseases more

69. ## Science

Water Cycle Model? How do you know if your water cycle model works?

70. ## Math

How do you find the missing height of a triangle?

71. ## History

I need help within the hour thanks. Kaitlyn. Why did Arabic numerals replace Roman numerals? A.They were more accurate. B.They were based on the Quran. C.They made it easier to perform calculations.** D.They were easier to read. Which of the following were

72. ## Math

Can you check me answers 6 eggs in 7 days=8222 122 patients in 4 weeks=305 \$8.43 for 3 pounds =281 25 letters in 4 days=.625 2 pay raises in 3 years=.66 repeated 15 pounds in 6 weeks=25 8 glasses every 24 hours=.33

73. ## Social Studies

Describe how and why the middle colonies had such a diverse population.

74. ## math

write the equation in slope-intercept form. What are the slope and y-intercept? -12x+13y=-10

75. ## Math

How to solve 0.67 x 0.3?

4(x+2)

77. ## Physics

A Frisbee gets stuck in the top of a tree, 60 meters above the ground. What is the smallest initial velocity you could throw a ball to reach the Frisbee and dislodge it? A. 48.5 m/s from an angle of 45 degrees above the horizontal B.48.5 m/s from directly

78. ## Algebra

DFW is 180 miles from Abilene. At the same time, one car leaves Abilene traveling to DFW at a speed of 60 mph while a second car leaves DFW traveling to Abilene at a speed of 70mph. How long will it take the two cars to meet?

79. ## Algebra

Two cars are driving from Abilene to DFW. The first car travels at 60 miles per hour it leaves Abilene 20 minutes before the second car. The second car travels 70 miles per hour how long will it take the second car to catch and pass the first car

80. ## Science

Can you see organelles of plants using a simple microscope? If yes, what is it?

81. ## ECONOMICS HELP!!!!!!

How did the election and Donald trump affect the stock market. I know I can just Google it but I cant seem to find the exact paragraph that explains it. Please help me. God Bless, Kait

82. ## Chemistry

The vapor pressure of pure methanol at 25 degrees Celsius is 127.2 mm Hg. If 12.20 g of potassium chloride are dissolved in 200.0 g of methanol, what is the vapor pressure of the solution? A.123.9 mmHg B.3.256 mmHg C.104.3 mmHg D142.7 mmHg

83. ## Educational thechnonolgy

Lines are used in a design to _____.Choose all that apply. A.Create movement B.lead the eye across the page C.describe the relationship between certain colors D.divide a page into sections

84. ## Physics

Question: You have a 4.5 kg lead block at room temperature. Part A: Find the energy required to raise the lead’s temperature to its melting point. Part B: Find the energy required to melt the lead once it’s reached the melting point. I got the answer

85. ## Math #3

Which is likely to have a mass close to 3 kilograms? A: a 5-year-old child B: a bowling ball*** C: a lemon D: an adult lion Can someone check this plz

86. ## Math

A bean plant was 1.5 meters high one week ago. In 7 days it grew 15 centimeters. Find the current height of the bean plant. A)1.35 m B)13.6 cm C)1.65 m *** D)1.85 cm Can someone check this plz?

Which statement best evaluates the results of Greece's membership in the European Union A. Greece's overall economy has improved because of increased trade. B. Greece's overall economy has improved because the euro is a strong Currency. C. Greece's overall

88. ## SS Help

Which statement best evaluates the results of Greece's membership in the European Union? MEDAL!!! A) Greece's overall economy has improved because of increased trade. B)Greece's overall economy has struggled because the euro is a strong currency. C)

89. ## Ed Tech

Selena needs to publish her research about Chinese culture. Her research includes audio clips from an interview with a Chinese citizen, written notes, and photographs from her tour of a Chinese exhibit in a local museum. Based on each application’s

90. ## algebra

the length of a rectangle is 5 times its width. if the length is decreased by 3 meters, and the width is increased by 10 meters, the perimeter will be 374 meters. find the length of the original rectangle.

91. ## Science

What propity makes a metal useful in a electical devices

92. ## Chemistry

How much heat energy is required to heat up 50.0 grams of water from 20.2 degrees Celsius to 34.2 degrees Celsius? I want o use the Q=mc(change in temp) formula but I am only given the m and difference in temp in this question so I am not sure of what I am

93. ## math

Jose was 62 years old nineteen years ago. how old is he now?

94. ## Math

you bought 10 gallon jugs of juice for \$26 if apple juice cost \$2 per gallon and orange juice costs \$3.50 per gallon how many of each type did he buy

95. ## Calculus

(b) Find a solution of the initial-value problem. (Hint: First verify that all members of the family y = 4/x + C are solutions of the given equation.) y' = −1/4y^2 y(0) = 0.25

96. ## math

Given the data set (5, 9), (13, 12), (23, 16), which of the following equations best represents a line of best fit? y = three fourthsx − 7 y = four fifthsx + 7 y = three over twox + 7 y = two thirdsx − 7

97. ## Calculus

Sketch the region on paper. If it is a finite region, find its area. Round your answer to three decimal places. (If the area is not finite, enter NONE.) S = {(x,y) | x ≥ −4, 0 ≤ y ≤ e-x/2}

98. ## Calculus

Internal 1/sqrt(1+x^3) from [0,2] and n=10 (a) Use the Trapezoidal Rule to approximate the given integral with the specified value of n. (b) Use the Midpoint Rule to approximate the given integral with the specified value of n. (c) Use Simpson's Rule to

99. ## Calculus

Consider the following depiction of a tank with radius r = 9 meters with a spout of height h = 4.5 meters. A tank is is half full of oil that has a density of 900 kg/m3. Find the work W required to pump the oil out of the spout. (Use 9.8 m/s2 for g and