Ella

Most popular questions and responses by Ella
1. Algebra

Jesse Played two days of golf. On the second day, he got a score of six bellow par, or -6. His total score for the two days was o above par, or 0. Define a variable. Then write and solve an equation to find the score Jesse got on the first day. Show your

2. Math

1. Which ratios form a proportion? (1 point) a. 3/15, 12/55 b. 8/24, 12/35 c. 5/18, 25/90 ***??? d. 4/11, 16/25 2. Which ratio forms a proportion with 9/15? (1 point) a. 6/10 ***??? b. 16/21 c. 36/50 d. 45/70 3. A textbook weighs 2.5 pounds. How many

3. Math

At 10:00 AM a truck started traveling from point A with a speed of 40mph. 3 hours and 10 minutes later a car started to drive from point A in the same direction with an average speed of 60mph. At what time will the car catch up with the truck?

4. Math

Which is the best buy? (1 point) a. 16 ounces of hand soap for \$2.40 b. 20 ounces of hand soap for \$2.80 c. 24 ounces of hand soap for \$3.00***??? d. 12 ounces of hand soap for \$2.00 Check my answer pls

5. Algebra

Jesse Played two days of golf. On the second day, he got a score of six bellow par, or -6. His total score for the two days was o above par, or 0. Define a variable. Then write and solve an equation to find the score Jesse got on the first day. Show your

Please check my answers because I need to do good at this. 1. When consuming fats the healthiest choice is foods high in? A. saturated fats B. unsaturated fats * C. trans fat D. cholesterol 2. The body's main energy source should come from what essential

7. Poetry??

Read the following excerpt from “and sometimes i hear this song in my head.” "and our tongues keep remembering the rhythm of the words we forgot swaying on the backs of buses and in hot kitchens crooning in pool halls and shared bathrooms yeah/we

8. English

PRESS RELEASE Contact: John Hemington, Human Resource director S+F Media is seeking a new member for our web design team. An innovator at the top of the field, S+F media has been delivering sleek, polished websites and user interfaces to our clients for

9. Precalculus ????

1. At the amusement park, you decide to ride the Ferris wheel, which has a maximum height of 50 meters and a diameter of 35 meters. It takes the wheel three minutes to make one revolution. If you start your ride at the midline and the ferris wheel rotates

10. Precalculus ????

The temperature in your house is controlled by a thermostat. The temperatures will vary according to the sinusoidal function: f(x)=5sin(pi/12)*(x-11)+19 where f(x) represents the temperature in degrees Celsius (°C) and x is hours since midnight. What is

11. chemistry

Potassium perchlorate has a lattice energy of -599 kj/mol and a heat of hydration of -548 kj/mol. Find the heat of solution for potassium perchlorate when 10.6 g of potassium perchlorate is dissolved with enough water to make 102.7 ml of solution.

12. Math

Are the ratios 25/45 and 15/27 proportional? Explain and show your work (2 points) A 10-acre field produced 750 bushels of corn. At that rate, ho much corn be produced at a 14-acre field? Show all of your work. (2 points)

13. physics

A student throws two beanbags in the air, one straight up and the other one at a 30° angle from the vertical. Both beanbags are thrown with the same initial velocity and from the same height. In your own words, explain which one will come back and hit the

14. Math

Which pair of ratios forms a proportion? a. 4/5 and 16/24 b. 9/15 and 3/4 c. 5/8 and 30/48 d. 9/10 and 40/45 I'm very confused pls give me the answer and how you got that so I can understand.

15. Math

1. Which ratios form a proportion? (1 point) a. 3/15, 12/55 b. 8/24, 12/35 c. 5/18, 25/90 d. 4/11, 16/25 2. Which ratio forms a proportion with 9/15? (1 point) a. 6/10 b. 16/21 c. 36/50 d. 45/70

16. Algebra

Which is the radian measure of an angle whose sine is 0.7? A. 0.64 B. 0.76 C. 0.78 D. 0.80

Complete the following table by replacing question marks with the correct numbers: (Note: Each horizontal row is a separate example, so in row #1, 175.32 grams of NaCl is how many moles of NaCl and how many molecules of NaCl does it contain?) Grams NaCl

18. college

while a patient is having surgery,his doctor notices a small mole.The doctor doesn't think the mole is anthing to worry about,but he decides to remove it to perform a biopsy.What is the doctor guilty of?

19. Science

Which of the following statements about electromagnetic radiation is true? A. It transfers energy to objects of the electromagnetic waves. B. It can be converted to other energy forms. C. It transports the energy of electromagnetic waves. D. all of the

20. university physics

A platinum resistance thermometer has resistances of 200.0 ohms when placed in a 0 degrees Celsius ice bath and 253.8 ohms when immersed in a crucible contacting melting potassium. What is the melting point of potassium? Hint: First determine the

21. Quick calc question

Suppose the integral from 2 to 8 of g of x, dx equals 13, and the integral from 6 to 8 of g of x, dx equals negative 3, find the value of 2 plus the integral from 2 to 6 of g of x, dx. 16 18 8 32

22. physics, help! urgent!

A positive point charge q = +2.50 nC is located at x = 1.20 m and a negative charge of ƒ{2q = ƒ{5.00 nC is located at the origin. (a) Sketch the electric potential verses x for points on the x-axis in the range -1.50 m < x < 1.50 m. (b) Find a symbolic

23. Calculus

Which of the following definite integrals could be used to calculate the total area bounded by the graph of y = 1 – x2 and the x-axis? the integral from 0 to 1 of the quantity 1 minus x squared, dx plus the integral from 1 to 2 of the quantity 1 minus x

24. Geometry

Are the slopes given 1/-3 and -1/-3 of two lines, parallel, perpendicular, neither or both? I think the two slopes of two lines are both, but I'm not quite sure. May someone help me?

25. Quick calc question

Which of the following definite integrals could be used to calculate the total area bounded by the graph of y = 1 – x2 and the x-axis? the integral from 0 to 1 of the quantity 1 minus x squared, dx plus the integral from 1 to 2 of the quantity 1 minus x

26. Quick calc question

Suppose the integral from 2 to 8 of g of x, dx equals 13, and the integral from 6 to 8 of g of x, dx equals negative 3, find the value of 2 plus the integral from 2 to 6 of g of x, dx. 16 18 8 32

27. Stats

The waiting times between a subway to Podger schedule and the arrival of the passenger on uniformly distributed between zero and nine minutes find the probability that a randomly selected passenger has been waiting greater than 3.25 minutes

28. ChemistryDrBob222 could you please check this over

0.281g of Fe(NH4)2(SO4)2*6H2O is dissolved in a total volume of 500.0 mL of water, calculate the resulting Fe concentration in ppm. molar mass of Fe(NH4)2(SO4)2*6H2O = 392.14088g/mol molar mass of Fe = 55.845g/mol 0.281g * (1mol/392.14088g) = 7.165X10^-4

An estimate for negative square root of 93 is ___ A-8.1 B-8.5 C-9.1** D-9.5 Julie is digging a square area in her backyard for a vegetable garden. If the area is 52 square feet, what is the approximate length of one side of her garden? A:6FT** B:7FT C:8FT

30. Biochemistry

A buffer solution is prepared by mixing 80.0 mL of 0.20 M NaH2PO4 and 120.0 mL of 0.20 M Na2HPO4.What is the pH of the resulting solution?

31. Geometry need help pls

A. A parallelogram has a 7-inch side and a 9-inch side, and the longer diagonal is 14 inches long. Find the length of the other diagonal. Do you need your calculator to do it? B. (Continuation) Evaluate 72 + 92 + 72 + 92 − 142 − d2, where d is the

32. Quick calc question

Which of the following definite integrals could be used to calculate the total area bounded by the graph of y = 1 – x2 and the x-axis? the integral from 0 to 1 of the quantity 1 minus x squared, dx plus the integral from 1 to 2 of the quantity 1 minus x

33. Quick calc question

the integral from 2 to 3 of 1 divided by the quantity 3 times x minus 2, dx is equal to the integral from 4 to 7 of 1 divided by u, du True? False?

34. Calculus

Which of the following integrals cannot be evaluated using a simple substitution? the integral of the square root of the quantity x minus 1, dx the integral of the quotient of 1 and the square root of the quantity 1 minus x squared, dx the integral of the

35. Early Childhood Education

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

36. investment

This year Shoreline Light and Gas(SL&G) paid its stockholders an annual dividend of \$3 a share. A major brokerage firm recently put out a report on SL&G stating that,in its opinion, the company's annual dividends should grow at the rate of 10% per year for

37. math

Robert needs to cut four shelves from a board that is 2.5 meters long. The second shelf is 18 centimeters longer than twice the length of the first shelf. The third shelf is 12 centimeters shorter than the first shelf. The remaining shelf is 4 centimeters

38. Geometry help

A parallelogram has a 7-inch side and a 9-inch side, and the longer diagonal is 14 inches long. Find the length of the other diagonal. Do you need your calculator to do it? then, (Continuation) Evaluate 72 + 92 + 72 + 92 − 142 − d2, where d is the

39. math

a die is thrown twice, find the probability of getting two 5’s. Be sure to represent your answer as a fraction in simplest form!

40. chemistry

a liquid has an enthalpy of vaporization of 30.8 kg.mol. at 273 K it has a vapor pressure of 102 mmHg. What is the normal boiling point of this liquid

41. comprehension

Help wanted – Administrative Specialist Minimum Requirements Two years of experience in general office, clerical, and administrative support work. Education from an accredited college of an associate degree or higher. Job Summary This position

42. Algebra word problem

A parabolic arch has a height of 20 m and a width of 36 m at the base. If the vertex of the parabola is at the top of the arch, at which height above the base is it 18 m wide?

43. university physics

Derive absolute error in equations: 1)Derive absolute error in (e/m) e/m= 2V/B^2*R^2 2)Derive absolute error in B B=8uN(Inet)/square root 125a

44. HISTORY!!!

How did the Dawes Act affect the Native Americans?

45. Math/algebra

i'm dividing 52 glass bears into groups she has 1 left over how many groups thanks ella

46. Physics

If you see a red-hot star, you can be certain that that its peak intensity is in the ingrared region. Why is this? And if you see a violet-hot star, you can be certaiin its peak intensity is in the ultraviolet range. Why is this?

47. chemistry

a liquid has an enthalpy of vaporization of 30.8 kg.mol. at 273 K it has a vapor pressure of 102 mmHg. What is the normal boiling point of this liquid

48. physics 10

1.) 100 kJ of heat is added to 600g of zinc at 20 C and 75g of it melts. If the specific heat of zinc is 0.385 kJ/kg-C and it melts at 420 C. What is its heat of fusion? 2.) If all the heat lost by 1kg of water at 0 C when it turns into ice at 0 C could be

49. mathematics

From an airplane at an altitude of 1200, the angle of depression to a rock on the ground measure 28 degrees find the horizontal distance from the plane to the rock?

50. Kinematics

A ball is dropped from a height of 60.0 m. A second ball is thrown from the height 0.850 s later. If both balls reach the ground at the same time, what was the initial velocity of the second ball?

51. English

Here is another poem that uses personification to help define the theme. Answer the questions that follow using all you know about poetic devices. The heart asks pleasure first, And then, excuse from pain; And then, those little anodynes (a medicine that

52. biology

A scientist has noted a possible relationship between a certain chemical substance found in fish and the occurrence of kidney failure to humans. Which of the following preliminary steps should the scientist take before conducting experiment? A. Establish a

53. Algebra

Krystal grilled 21 burgers at a block party. She grilled the same number of pounds of turkey burgers as hamburgers. Each turkey burger weighed 1/4 pounds and each hamburger weighed 1/3 pound. How many of each did Krystal grill? ~Please help me and provide

54. Math

5.Solve the proportion using cross products. (1 point) 18/20 = k/110 a.99 b.122 c.3.3 d.2.9 I'm confused please give me the answer and how you found it so I can do it on my own next time

55. I NEED HELP :(

Mr. Malone is putting money in two savings accounts. Account A started with \$200 and Account B started with \$300. Mr. Malone deposits \$15 in Account A and \$10 in Account B each month. In how many months will the accounts have the same balance? What will

56. English help urgent

Why are the outsides of the buildings in Philbert Place so darkened ? London weather is foggy.

57. History

Why did the Portuguese think they could find an easier way to reach Asia? A. They had alliances with European nations to send out expeditions. B. They had a large county and a long tradition of asian exploration. C. They had a large fleet and had defeated

58. Quick calc question

Use your graphing calculator to evaluate to three decimal places the value of the integral from negative 1 to 1 of the product 2 and the square root of 1 minus x squared over 2, dx . 3.771 3.636 1.571 1.111

59. Quick calc question

Which of the following integrals cannot be evaluated using a simple substitution? the integral of the square root of the quantity x minus 1, dx the integral of the quotient of 1 and the square root of the quantity 1 minus x squared, dx the integral of the

60. Composition

I was assigned to complete an analysis essay on The features of multiple intelligence theory, temperament, and emotion and how they make up a person character. How do I begin?

Which of the following elected officials introduce laws in Congress that may become national laws? U.S. representative or senator Governor of Arkansas State representative or senator Mayor **

62. investment

eddy is considering a stock purchase. the stock pays constant annual dividend of \$2.00 per share, and is currently trading at \$20 . Eddy's required rate of return for this stock is 12%. should he buy this stock?

A student swims at 4m/s. She is swimming from west to east across a river that's is flowing 2.2m/s [S]. A) if the river is 100 m wide, what is the quickest time that she can swim the entire width? B) how far downstream will she be? C) if she decides to go

64. physics

find the mass of a ball on a roof 30 meters high, if the ball's gravitational energy is 58.8 joules.

65. physics, help!!

A metallic sphere initially has a net charge of +4.0 nC. A negatively-charged rod initially has a net charge of –6.0 nC. When the rod touches the sphere 8.2 x109 electrons are transferred to the sphere. What is the new net charge on the sphere?

66. English

A thermostat is a device used to adjust the temperature indoors. Which of the following explanations best interprets the author's intended meaning in the bolded words in following sentence? "The Church was a thermostat that transformed the mores of

67. macroeconomics

Year - 2000 Nominal GDP: 9,817 Real GDP: ___________ GDP Deflator: 1 Inflation 2.2 Real GDP Per capita: _________ Population 283.7 Year – 2001 Nominal GDP: ________ Real GDP: 9,891 GDP Deflator: _________ Inflation 2.4 Real GDP Per capita: _________

68. Physics

Since every object has some temperature, every object rediates energy. Why then, can't we see objects in the dark?

69. Math

lisa wants to paint the ceiling of her restaurant.The ceiling is in the shape of a square Its side lengths are 48 feet suppose each can of paint will cover 192 square feet. How many cans will she need to pant the ceiling

70. Math

Firework A goes off at 320ft/s firework b goes off at 220ft/s but firework b is launched 0.25s before A

71. Chemistry

Can calcium hydroxide solution be used to distinguish Co(NO3)2 and Fe(NO3)3 solutions using only the titration technique? Justify your answer with an explanation.

72. Math

The Mathematical model C(x)=100x+20,000 represents the cost in dollars a company has in manufacturing x item during a month.

73. investment

dividend of \$2.25 a share. In addition, the future annual rate of growth in dividends for each of the three companies has been estimated as follows: Buggies-Are-Us Steady Freddie, Inc. Gang Buster Group g 0% g 6% Year 1 \$2.53 (i.e., dividends (for the 2

74. chem

a mixture of 50g of S & 1x10^2g of Cl2 reacts completely to form S2Cl2 &SCl2. Find the mass of S2Cl2 formed.

75. English

Birches by Robert Frost When I see birches bend to left and right Across the lines of straighter darker trees, I like to think some boy's been swinging them. But swinging doesn't bend them down to stay As ice-storms do. Often you must have seen them Loaded

76. Physics

A student swims at 4m/s. She is swimming from west to east across a river that's is flowing 2.2m/s [S]. A) if the river is 100 m wide, what is the quickest time that she can swim the entire width? B) how far downstream will she be? C) if she decides to go

77. chemistry

One purpose of adding KIO4 is to prevent the permanganate ion from being slowly reduced to Mn+2 by H2O. Write a balanced redox equation for the reduction of permanganate ion to Mn+2 by water in acid solution.

78. math

Find the standard deviation for the given data. Round your answer to one more decimal place than original data. 2,5,47,11,13,48,39,36

79. physics

Three point charges, A=2.00 uC, B=7.00 uC, C=-4.00 uC, are located at the corners of an equilateral triangle. a) Find the magnitude and direction of the electric field position of the 2.00 uC charge. b) How would the eletric field be affected if the charge

80. math

Write and solve the differential equation that models the verbal statement. Using k for the constant of proportionality The rate of change of N with respect to s is proportional to 626 − s. dN/ds= N=

81. English 1

1.Writers often communicate their themes by building clues into the story. Choose one story from Collection 4 and show how the author uses characterization, title choice, and key passages to develop the theme of the story. Use examples from the story,

82. Algebra

Your weigh on the moon is about 1/6 of your weigh on earth. Write and solve an equation to show how much a person weighs on earth if he weighs 16 lbs. on the moon .

83. English 1 Literature

I understand what the question is asking for but I do not know exactly how to write it. Here is the question. The way a story is told and the voice that tells it are important parts of a story. Choose at least two stories from Collection 3. Analyze the

84. Algebra

Mr. Malone is putting money in two savings accounts. Account A started with \$200 and Account B started with \$300. Mr. Malone deposits \$15 in Account A and \$10 in Account B each moth. In how many months will the accounts have the same balance? What will

85. calculus

A particle moves on a line so that its position at time t seconds is p(t)=3t3 meters to the right of the origin. Find the time c in the interval (4,8) for which the velocity of the particle at time c is equal to the average velocity on the interval [4,8].

An airplane has an air speed of 112m/s [N 20 degrees W] and has a ground speed of 106 m/s [N 25 degrees W]. Find the velocity of the wind.

87. Chemistry

What is the balanced equation for the reaction of acetylsalicylic acid and sodium hydroxide?

88. Physics

An electron de-excites from the fourth quantum level, to the third and then directly to the ground state. Two photons are emitted. How does the sum of their frequencies compare with the frequency of the single photon that would be emitted by de-excitation

89. Physics

A 3mf capacitor and a 5mf capacitor are connected in parallel to a 16v battery. a) What is the equivalent capacitance of the connection? b)What is the voltage drop across each capacitor? c)How much charge is stored on each capacitor? and d) What total

90. Algebra

6. Jason tried cliff-diving in St. Thomas while vacationing with his family. His height as a function of time could be modeled by the function h(t) = -16t2 + 16t + 480, where t is the time in seconds and h is the height in feet. a) How long did it take for

91. Economics

Which of the following is a characteristic of a traditional economy? A. It encourages innovation and change. B. It is usually based on light industrial production. C. It has a high standard of living. D. It revolves around the family unit.

92. geometry

10. Exactly how many cubic inches of air can a fully inflated basketball hold if its radius is 4.8 inches

93. algebra

Mike would like to plant some trees so he needs to use a portion of his existing yard. The perimeter of this rectangular portion needs to be 14 yards and the diagonal is 5 yards. Can you help Mike determine the length and width of this new portion? Mike

94. Chemistry

The U.S. Food and Drug Administration (FDA) recommends that adults ingest less than 2.4 g of sodium per day. How many liters of softened water, containing a sodium concentration of 6.0×10−2 percent sodium by mass, have to be consumed to exceed the FDA

95. Legal Aspects of Health Information

A doctor applies for medical staff privileges at a hospital. What is the hospital administrator required to do?

96. SCIENCE!!!

What are the organizational levels of a bird from smallest to largest?!?

97. Algebra

the difference of two numbers is 10. the sum of three times the smaller number and four times the larger is 75. find the numbers

98. math

Betsy is making a flag. She can choose three colors from red, white, blue, & yellow. How many choices does Betty have?

99. math

GCD (24,20) IS 4. sINCE gcd(4,12 ) is 4 then GCD (24,2012 IS 4 USE Euclidem LGERITHM TO FIND THE gcd 722, 2413,209