# ELLA

Popular questions and responses by ELLA
1. ## 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

2. ## 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!

3. ## 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

4. ## 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

5. ## 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

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

7. ## 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?

8. ## 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

9. ## 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

10. ## Chemistry

Please help! The vapor pressure of water at 35 oC is 42.175 mm Hg. The vapor pressure of ethyl alcohol (C2H5OH) at 35 C is 100.5 mm Hg. What is the vapor pressure of a solution prepared by dissolving 250 g of C2H5OH in 375 g of H2O? The answer is

11. ## 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?

12. ## 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 will act

13. ## 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

14. ## English help urgent

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

15. ## Math

Find the simple interest for each of the following round to the nearest cent 27850 at 7.75% for 100 days

16. ## 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?

17. ## 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

18. ## 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

19. ## 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?

20. ## 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

21. ## physics- kinematics

General question- when do you use NEGATIVE for 9.8m/s^2? Even when the questions says "an object is thrown up in the air from top of the building, on its way down, it misses the building and falls to the ground below." If you do use a negative value, why

22. ## 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

23. ## ap biology

The best conclusion concerning delta is that the cells a. contain no DNA. b. contain no RNA. c. contain only one chromosome that is very short d. are actually in the G0 phase e. divide in the G1phase Explain your choice: Would it be d?

24. ## 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

25. ## Geometry

Imagine a piece of square paper that measures 20 by 20 cm. You can make a box (with no lid) by cutting a square of the same size from each corner and folding up what's left to make a box. Keeping the lengths of each sides integers, what is the maximum

26. ## 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

27. ## mathematics

For how many two-digit primes is the sum of the digits equal to 8?

28. ## mathematics

Emma uses a 250-meter roll of crepe paper to make streamers. How many dekameters of crepe papers does Emma use?

29. ## 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?

30. ## 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

31. ## Math/algebra

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

32. ## English

Act I of An Enemy of the People Question Think carefully about what each quote might infer about the character and choose the most appropriate answer in the context of the play. Taking one thing with another, there is an excellent spirit of toleration in

33. ## government

According to the doctrine of judicial restraint, the judiciary should?

34. ## 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

35. ## 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

36. ## History

what is Germany before and after WWI?

37. ## 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

38. ## 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

39. ## 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

40. ## 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

41. ## 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

42. ## 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

43. ## physics

A mother rocket fired from the ground last year’s eve ejects 25% of its mass 2.0 at the at the rate if so m/s in the first second of its flight. Find the initial acceleration of the mother rocket.

44. ## 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

45. ## CHEMISTRY HELP

how can analytical chemistry help on different fields of sciences and technology?

46. ## Math

What is the order of the numbers from least to greatest? 2.01, 2.1, 2.001, 2.11, 2.011

47. ## math

Bert is 5 years older than twice the age of mario. Nine years ago, the sum of their ages is 50. How old is each now?

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.

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

50. ## Chemistry

Alcoholic drinks contain ethanol. 10cm3 of ethanol is called one unit of alcohol. Men are advised to drink a maximum of 21 units of ethanol a week, while women are advised to drink a maximum of 14 units. Wine contains about 14% ethanol by volume. A) a

51. ## Wriitng

What would be the reaction of a teenage daughter after rescuing her parents after their kidnap? so this is for a story I'm writing. basically, my main character finds her parents and is finally there after a lot of hard work and struggle. she's seen a lot

52. ## Writing

what would be another way to phrase "i'm on a rollercoaster that only goes up". like is there another metaphorical or symbolic sentence like it which we can say. just to erase some confusion--i'm talking about using other words that portray the same

53. ## HISTORY

Was imperialism necessary in the 19th century?

54. ## median and mode

What is the median of this set of numbers 85,48,75,36,55

55. ## 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.

56. ## 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

57. ## 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

58. ## Chemistry

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

59. ## 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

60. ## 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,

61. ## math

lim (2x^2+3x-2)/ (2x-1) the lim is x->1/2 [ans:5/2 but i get 3/2) can someone show me the calculation work.

62. ## 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

63. ## Math

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

64. ## math

Consider the following students method of solving the proportion 8/5 = 20/x and determine whether the methods were correct: Richie: First I divided 20 by 8 and got 2 1/2. Then I multiplied 2 1/2 by 5 and got 12 1/2 for my answer. Martha: I think of it this

65. ## math

Verify that the circles x2+y2 = 25 and (x−5)2+(y−10)2 = 50 intersect at A = (4, 3). Find the size of the acute angle formed at A by the intersecting circles. You will first have to decide what is meant by the phrase the angle formed by the intersecting

66. ## 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

67. ## Science

I am in 6th grade and doing very well so i am not stupid or anything but i don't know if my science fair project is for my grade level. It's What Makes Ice Melt The Fastest. What Do You Think? Thnak You

68. ## Calculus

Solve the IVP {y'=-(sinx)y + xexp(cosx) y(0) = 1 Please show me step by step. Do I need to find out if this is exact? Do I use an integrating factor?

69. ## 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.

70. ## Legal Aspects of Health Information

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

71. ## HISTORY!!!

How did the Dawes Act affect the Native Americans?

72. ## 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

73. ## 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?

74. ## English

Why some choose Street Dance as a hobby? List 5

75. ## World History

What is a consulate? I'm learning about the French Revolution right now if that helps. I've been getting multiple different answers and I'm confused.

76. ## physics

a boat is traveling with a velocity of 42km\h(40 degree south of east) in a river. The river's current is 5km\h south. what will be the resultant velocity of the boat relative to the shore?

77. ## math

what multiple of 9 is also a factor of 9

78. ## biology

Which fluid fills the bony labyrinth and suspends the membranous labyrinth?

79. ## geography

How does the tilt of Earth’s axis and its movement around the sun play a part in the changing of the seasons in the Northern Hemisphere? its an essay question idk how to do it pls help

80. ## 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?

81. ## 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

82. ## 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?

83. ## 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?

84. ## bio

Why was Gregor Mendel Successful t understand heredity? a. He used many variables b. Use of Statistics for genetic patterns c. Use of Peas d. Improved technology

85. ## 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

86. ## 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

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 **

89. ## Science

Yes I know this might be easy for some of you, but I have this problem on my homework and I'm confused. Why is water wet?

90. ## Math

How many inches are in 10 feet using conversion factor? Show all of your work.

91. ## 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.

92. ## 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)

93. ## 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

94. ## 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

95. ## 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

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

97. ## math

when do you need toregruop or rename mix fraction

98. ## maths

I am thinking of a number. I multiply it by 10 and subract it by 127. I get the same number if I multiply by 6 and subract 11.

99. ## 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