# Luna

Popular questions and responses by Luna
1. ## Math

Writ two decimals that are equivalent to the given decimal 5.300 3.7 0.9

2. ## trig

How do you solve sin(e^x)=0 for x? The question is "find the smallest number x such that sin(e^x)=0".... but I can't even get AN answer lol! Much appreciated!

3. ## Geometry

Hello! Please help! The dashed triangle is a dilation image of the solid triangle with the center at the origin. Is the dilation an enlargement or reduction? Find the scale factor of the dilation. The solid triangle has the points A(-6,0) B(6,5) and

4. ## chemistry chem science

A portable CD player that draws 160 milliamperes of current is powered by Ni-Cd rechargable batteries. Compute the mass of Cd consumed when a disk is played for 35 minutes. (enter your answer in grams)

5. ## math

How Many Lateral Faces Does A Triangular Prism Have?

6. ## Physics

A particle moves along the x axis. It is initially at the position 0.350 m, moving with velocity 0.110 m/s and acceleration -0.380 m/s2. Suppose it moves with constant acceleration for 3.50 s. (a) Find the position of the particle after this time. (b) Find

7. ## Calculus (math)

Warfarin is a drug used as an anticoagulant. After administration of the drug is stopped, the quantity remaining in a patient's body decreases at a rate proportional to the quantity remaining. Suppose that the half-life of warfarin in the body is 35 hours.

8. ## science (check please (:)

8.Which of the following would help decrease the human ecological footprint? . . . . . . . . . . . . . . . My answer: using public transportation instead of riding in a car? (I have doubts on my choice) but my other choice is using bottled water instead of

9. ## Math

which graph represents the solution to the given system y =-x+4 y = 1/3x + 8 Please help me..

10. ## Calculus II: Finding the volume of a revolution

Question: Find the volume of revolution bounded by y-axis, y=cos(x), and y=sin(x) about the horizontal axis. Since the rotation is happening at the horizontal axis, I thought the limits of integration would be [-1,1] and if the curves are rotated they

11. ## math (cant figure it out)

How to find the surface area of a cylinder with a diameter of 6ft and a height of 20cm using 3.14 rounded to the nearest whole number. (I cant figure it out my book doesn't give an example of it just a radius formula and ive tried searching the formula but

12. ## Science

1. Use the image below to answer the following question. An image shows a diver crouching on a diving board labeled 1. The diver launching off the board is labeled 2. The diver just about to enter the water is labeled 3 The diver in the water feet above

13. ## Maths

a man accepts a position with an initial salary of money \$1800 per year if his salary increases at the end of every year by \$1500 what would be his annual salary at Te begging of the 11th year

14. ## science question

Which process tends to occur more quickly, natural selection or artificial selection?

15. ## MATH ✿╣Check╠✿

A bag has 6 green marbles, 4 red marbles, 5 yellow marbles, and 3 purple marbles. What is the probability of choosing a purple marble? 1/6**? 6/18 3/20 1/9

16. ## social studies (check plz)

Which statement best describes the government of Canada? The monarch of Britain has total control over Canada. The Canadian parliament is ruled by the United States. Canada has complete power over its own government(MY ANSWER) The prime minister is the

17. ## Geography

Where would the following probably place the umpire yelled you’re out

18. ## Career exploration

1. Information security professionals hack into computer systems. (1 point) True False 2. What kind of network might you have at home? (1 point) LAN WAN wireless intranet 3. Apps are designed by: (1 point) software developers. network administrators.

19. ## science

A cubic block of one of the substances listed on the chart has a side length of 5.0 cm and a mass of 224 grams. Which material is it?

20. ## Chemistry

Radon-222 is a radioactive gas with a half-life of 4 days. Approximately how much of a 40 g sample of radon-222 would remain after 12 days?

21. ## MATH ✿╣Check╠✿

which expression would you use to figure out the number of ways you can arrange the letter in the word EQUATION?--------------My answer: 8P4 (the 8 and 4 are suppose to be small)

22. ## MATH ✿╣Check╠✿

8. There are 5 different cookies in a bag. One of them is your favorite, chocolate chip. What is the probability that you will not get your favorite? 1/5 2/5 24/25 4/5**?

23. ## science (check)

5.Which of the following could help reduce loss of biodiversity ? A. increasing construction of tall buildings B. increasing farming operations C. increasing conservation measures***** D. Increasing the human ecological footprint

24. ## science (check)

carrying capacity is the maximum number of _____ that an ecosystem can support. . . . My Answer: Individuals in a population (Is it right?)

25. ## social studies

12. How do the cherries on a cherry tree help the plant reproduce? Cherries develop into seeds, which are young, undeveloped plants. Animals eat the cherries, which helps disperse the plant’s seeds. Pollen inside the cherries fertilizes ovules, which

26. ## English

What does the word sense most likely mean in line 69 of the excerpt from "The Odyssey"? You bleary vagabond, no rag of sense is left you! A. intuition B. rationality*** C. sensibility

27. ## science

How many cells are in your body?

28. ## Physics

Two forces, F⃗ 1 and F⃗ 2, act at a point. The magnitude of F⃗ 1 is 8.80 N , and its direction is an angle 63.0 ∘ above the x-axis in the second quadrant. The magnitude of F⃗ 2 is 5.80 N , and its direction is an angle 54.0 ∘ below the x-axis

29. ## English

What is the tone or attitude of the writer toward living with pain? How does the writer use irony to develop this tone? An arid daylight shines along the beach Dried to a grey monotony of tone, And stranded jelly-fish melt soft upon The sun-baked pebbles,

i need help _____ refers to ethical or unethical behaviors by manager or employee of an organization. A.) Cartelling B.) business ethics C.) social ethics D.) collusion

31. ## Science

Joe wants to measure the perimeter of his house. What would be the appropriate unit of measurement that he should use? A) centimeters B) kilometers C) meters D) millimeters IM THINKING KILOMETERS

32. ## Science

When heating a liquid sample in a test tube, the mouth of the test tube should be... - A ) inverted. - B ) located under the student. - C ) pointed away from the student. - D ) heated first, not the bottom of the test tube.

33. ## Science

Summer is over and Cara and Mike are back in school. "Boy, it was not a very hot summer!" said Mike. "Yes, it was much cooler this year. We didn't get much swimming in," Cara answered. Mrs. Jenkins, their teacher, told her students that in science, they

34. ## Math

Write an expression to represent this situation (Four less than half a number???)

35. ## Social Studies

What is the purpose of john brown's ferry? A: To steal weapons to use in an uprising against slavery. B: To scare the union to succession C: To protest the passage of the Kansas-Nebraska Act D: To free enslaved people who worked there. Oof help me I

36. ## Social Studies

After a series of losses early in the war, Union troops turned the tide by winning an important battle at *Blank* A: Bull run. B: Fort Sumter C: Richmond D: Antietam

37. ## Social Studies

What did Levi Strauss and Luzena Stanley Wilson have in common? A: Both were Methodist Missionaries who moved to Oregan to try to Convert Native Americans to Christianity B: Both were gold miners who became very rich at the height of the California Gold

38. ## Bio/math?

The DNA in a human cell weighs approximately 2.0 x 10-12 grams. Calculate how many cells you would need to use to isolate 1 mg (milligram or 1x10-3 grams) of DNA, assuming you can get all the DNA out of a cell. I honestly don't know how to start and solve

39. ## science

4. Use the image below to answer the following question. An image shows two skydivers in free fall. One is upright with arms and legs extended. The second is upside down. Which kind of energy transformation occurs during skydiving? (1 point) mechanical to

40. ## Science

2. How does the gravitational potential energy of Coaster A compare with that of Coaster B? An image shows two roller coasters. At the left, coaster A is positioned at the top of a 30 meter hill. To the right, coaster B is atop a 15 meter hill. (1 point)

41. ## Science

4. Which of the following is true about all of the outer plants? a. Much of the material in these plants is solid. b. The surface of these plants is rocky. c. They have many moons. d. They all rotate in the same direction.***

42. ## Science

4. Which of the following is true about all of the outer plants? a. Much of the material in these plants is solid.*** b. The surface of these plants is rocky. c. They have many moons. d. They all rotate in the same direction.

43. ## Science

1.)Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? A.)comet B.)asteroid C.)dwarf planet*** D.)planet Thanks for the help, Luna

44. ## Pre-Algebra

Can someone check this? 11. Which of these nonterminating decimals can be converted into a rational number? ***a. 0.626226222... b. 0.020220222... c. 0.123123123... d. 0.898998999... Thanks for the help, Luna

45. ## Pre-Algebra

16. Triangle ABC has coordinates A(1, 4); B(3, 2); and C(4, 2). Find the coordinates of the image A'B'C after a reflection over the x-axis. I don't understand please help. Greatly appreciate it, Luna

Simplify. mn^-4/p^0 q^-2 a) mq^2/n^4 b) mp/n^4 c)mn^-4q^2p^0 d)q^2/mm^4 **** ****= my answer. Please check this for me!

47. ## algebra

order these from least to greatest 0.67, 9/10,0,-0.11

48. ## Chemistry

How would I figure out how far the distance in kilometers between the sun and earth be if it takes 8.3 minutes for light to travel? (Light travels at 3.00 x 10^8)

49. ## math

Part 1:Is it possible for a composite number to have more than one prime factorization? Is it possible for a number to have no prime factors? Why? I think it is possible for a composite to have more then one prime factorization Part 2: Give an example of

50. ## Math

There was 30 students in the class 24 of these studen pass the test what percentage of these students passed their test

51. ## Calculus II: Shell Method for finding volumes

Question: What is the volume of the revolution bounded by the curves of y=4-x^2 , y=x, and x=0 and is revolved about the vertical axis. First, I had found the points of intersection to get the limits and I got -2.5616 and 1.5616. And then I plug it in the

52. ## math

Ashley ate 3/5 apples. Alan ate 4/20 apples. How much apples were left?

53. ## Math

there are 120 cards shared between Anna, Jane and Tina. Each time Anna gets 5, Jane must get 3, and Tina has to get 2 until all of cards are divided. How many cards does each person get?

54. ## Language Arts

Plz help ms sue Question #1: Which characteristics make "The Rider" a lyric poem? a. It uses musical language and expresses feelings b. It tells a story about a historical event c. It rhymes and has a regular rhythm d. It uses repetition and describes a

55. ## Math Pz help

A flat-screen TV cost \$1,40.00. The TV is on sale for 35% off. What is the discounted price of the TV?

56. ## Statistics

Suppose Cindy is taking a multiple-choice test where there are 5 possible answers on each question. If she guesses on all 8 questions, what is the probability that she gets: a.) exactly 3 correct. b.) at least 1 correct. c.) What is the mean? d.) What is

57. ## Physics

Once all of the passengers aboard it a train leaves the station and it takes 30 minutes to reach its maximum velocity once at maximum velocity train travels the next 6.30×10^2 km for the next 12.6 hours what is the acceleration of the train leaving the

58. ## Biology

how to maintain the qualities of water ?

59. ## Math

I'm having trouble putting these least to greatest 6 and 9/10 , 6 and 19/80 , 6 and 3/4

60. ## Chemistry

What volume of coffee (pH=5.0) would be required to have .25 moles of H3O+ ions? (must be two steps)

61. ## math

Mrs Lopez has \$9,118 in her bank account on March 1 she saves \$609 in March. Then, she must pay \$1,011 in taxes in April. Mrs Lopez is able to save \$705 in May. At the end of May approoimately how much greater or less is her account balance than it was on

62. ## Math

Ann is x years old and her sister is 2 years older. If the product of their ages 80. Form an equation in x and solve to find the age of each. ______________________________________ I got up to, x + 2x = 80 x + 2x - 80 = 0 and now im confused... this is for

63. ## spanish

Ok so I just need someone to check my answers and tell me if they are right or wrong :) (if wrong why) And to help me with the unanswered questions (couldnt find the right answer for them) Choose the correct form of the préterito tense: 1. Susana dormía

64. ## Math

Ricardo spent \$37 for a jacket which included \$2.38 in sales tax. Write and solve an addition equation to find the price of the jacket before tax

65. ## Health

Long-term stress can lead to: (select 3) A. more frequent illnesses such as colds B. headaches C. heart disease D. self-actualization I think its A,B,C

66. ## Math

What percent of 250 is 70? A. 3.6% B. 18% C. 28% D. 175% I think it would be either C or D

67. ## Algebra

A baseball is hit at a point 2 feet above the ground at a velocity of 100 feet per second and at an angle of 45 degrees with respect to the ground. The path of the baseball is given by the function: f(x)= -0.0032x^2+x+2. where f(x) is the height of the

68. ## Physics gr. 12

Rick and Glen are cornered by zombies as they tend to be in each episode. In this particular episode, Glen fires a grappling hook with a rope attached up to the roof of the building they are standing beside. Glen takes a quick look at the bag the rope came

69. ## science (help)

18.Fertilizers and pesticides applied to farm fields in Pennsylvania have made their way down into the Chesapeake Bay in Maryland. This is an example of _________________ pollution. 19.Before beginning any land development project, people should carry out

70. ## science (check!)

when fossil fuels are burned they produce _____, the main greenhouse responsible for global warming trends. ----MY ANSWER: emission?---

71. ## Math (help)

what is the length of the radius of the LARGER cone(the LARGER cone has a slant height of 15) when the SMALLER cone has a radius of 8 and a slant height of 12ft ,please help.

72. ## Math (help)

how to find the surface area of a cone with a diameter of 8 and a slant height of 7? with steps? please

73. ## Math help

how to find the surface area of a cone with a diameter of 8 and a slant height of 7?

74. ## Math help

How do you find the volume of a cylinder with a diameter of 34m and a height of 27m?

75. ## MATH ✿╣Check╠✿

what is the surface area of a sphere with a radius of 5 meters rounded to the nearest square meter? MY ANSWER: 314m^2 (is it correct?)

76. ## Math (check)

what is the slant height for the given pyramid to the nearest whole unit? with a pyramid base of 12cm and a height of 8cm. MY ANSWER: 14

77. ## Math (how do you find the volume of a cone)

for example, a radius of 5 and a height of 20, could you please explain the steps? Thank you in advance!!

78. ## science (check!)

which of the following would be most likely to lead to increased biodiversity? . My answer: National park planning (though I kind of have the answer of farming in thought too)

3. Which of the following pairs of terms could be used to describe a bullfrog that is active at night and enters a state of complete inactivity during colds months? . . . My answer: Circadian rhythm and hibernation.

80. ## Math check (:

find the volume of the cone with a radius of 6in. and a height of 11in. MY ANSWER: 415 in^3 (Is it right?) thank you in advance!

find the volume of a square pyramid with a base length of 9cm and a height of 4cm. ANSWER: 108 cm^3 (is it right?)

82. ## math question (CHECK)

find the surface area of a square pyramind with a base length of 24cm and a height of 16cm . . . . . . . . A.1056 cm^2 . . . . . . . . . . B.1536 cm^2 . . . . . . . . . . C.816 cm^2 . . . . . . . . . . D.1344 cm^2(I CHOOSE THIS ONE)

83. ## Math question check

find the surface area of a square pyramind with a base length of 24cm and a height of 16cm . . . . . . . . A.1056 cm^2 . . . . . . . . . . B.1536 cm^2 . . . . . . . . . . C.816 cm^2 . . . . . . . . . . D.1344 cm^2(I PICKED THIS ONE)

find the lateral area of a cone with a radius of 7ft. and slant height of 13ft, use 3.14 for pi and round the nearest tenth. . . . . A.439.6 ft^2 . . . . . B.324.5 ft^2 . . . . . . C.571.5 ft^2 . . . . . . D.258.7 ft^2(I PICKED THIS ONE)

85. ## math (check)

find the volume of a cylinder with a diameter of 16mm and a height of 5.7. A.2,292mm^3 . . . 4,584mm^3(i think its this one) . . . 689mm^3 . . . . 1,146 (but i also got an answer close to this but the tens place was 5)

86. ## math

Calculate the slant height for the given cone. Round to the nearest tenth. (explain?) 10.2 cm 11.4 cm 9.8 cm 12.0 cm (I picked this one)

87. ## science

3. Which of the following is an example of inbreeding? A farmer chooses the cows in his or her herd that produce the most milk and breeds only those cows. A farmer chooses the cows in his or her herd that produce the most milk and breeds them with cows

88. ## social studies

The first immigrants to the United States were mainly from England, Scotland, Ireland, Germany, and? a. Russia. b. Italy. c. Scandinavia. d. Greece I think its either A or C please help

89. ## Math

Hi, could you please provide a step by step solution explaining how to do this: [(a^2 - b^2 + a + b)/(a - a^3)] x [(1-a^2)/(a - b + 1)] The answer should be (a + b)/ a Thanks

90. ## engliiish

dramatic monoluge and soliloquy main similarity and main difference

91. ## trig

How do you solve sin(e^x)=0 for x? The question is "find the smallest number x such that sin(e^x)=0".... but I can't even get AN answer lol! Much appreciated!

92. ## science

A solution is prepared by mixing 100.0 mL of 0.0500 M AgNO3 with 75.0 mL of 0.0500 M CaCl2. What is the equilibrium concentration of Ag+ in solution? Ksp for AgCl is 1.6 x 10^-10

93. ## MATH

A random sample of state gasoline taxes (in cents) is shown here for 12 states. Use the data to estimate the true population mean gasoline tax with 90% confidence. Does your interval contain the national average of 44.7 cents? 38.4 40.9 67 32.5 51.5 43.4

Find the area under the standard normal distribution curve for the following z-values: a. Between z= 0 and z = 2.01 b. Between z = 0 and z = -0.32 c. To the left of z = -0.73 d. To the right of z = 0.32

96. ## college math

solve the equation 1). (x+4)(x-12)=5x 2). 4x^2+2x-14=16-17x

97. ## physics

object A exerts a gravitational force of magnitude 8.2 x 10^-10 N on object B. determine the magnitude of the gravitational force if, simultaneously, the separation distance is tripled, mA increased by 4 times and m8 is halved. explain your reasons and

98. ## Algabra 1

Buying a Home For most people, buying a house is a great investment that can offer security in an uncertain world, but buying a house is also a commitment. Application Practice Answer the following questions. Use Equation Editor to write mathematical

99. ## physics

if the angular quantities theta omega and angular acceleration were specified in terms of degrees rather than radians how would the kinematics equations for uniformly accelerated rotational motion have to be altered