# zoey

Popular questions and responses by zoey
1. ## math

The sum of three numbers is 89 . The third number is 3 times the second. The first number is 9 more than the second. What are the numbers?

2. ## physics

At highway speeds, a particular automobile is capable of an acceleration of about 1.6 m/s2. At this rate, how long does it take to accelerate from 81 km/h to 117 km/h?

3. ## math

x = t − 2 sin t, y = 1 − 2 cos t, 0 ≤ t ≤ 6π Set up an integral that represents the length of the curve.

4. ## science

Calculate the buoyant force in air on a kilogram of gold (whose density is about 19 grams per cubic centimeter). The density of air is 1.3 ✕ 10-3 grams per cubic centimeter. Remember that the buoyant force is equal to the weight of a volume of air that

5. ## ELA

100% - The Story of a Patriot Upton Sinclair 1 A young man is walking down the street, quite casually, with an empty mind and no set purpose; he comes to a crossing, and for no reason that he could tell he takes the right hand turn instead of the left; and

6. ## Math

If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same resistance?

7. ## Math HELP!

1. Write 12/32 in simplest form. Could someone please help me on how I can turn this fraction into simplest form like explain the steps! Thanks.

8. ## Physics

Pepe and Alfredo are resting on an offshore raft after a swim. They estimate that 3m separates a trough and an adjacent crest of surface waves on the lake. They count 14 crests that pass by the raft in 20 seconds. Calculate how fast the waves are moving.

9. ## calc

Find the centroid of the region bounded by the given curves. y = 2 sin 3x, y = 2 cos 3x, x = 0, x = π/12

10. ## Chemistry

Consider the following reaction. 4 Al(s) + 3 O2(g) → 2 Al2O3(s) It takes 1.00 L pure oxygen gas at STP to react completely with a certain sample of aluminum. What is the mass of aluminum reacted?

11. ## math

Steffan is four and three tenths feet tall and Gretchen is three and six tenths feet tall. How tall are they in total?

12. ## Calculus

To estimate the height of a building, a stone is dropped from the top of the building into a pool of water at ground level. How high is the building if the splash is seen 6.7 seconds after the stone is dropped? Use the position function for free-falling

CHECK THESE MATH ANSWERS PLEASE 1. There are 18 boys and 12 girls in a math class.what is the ratio of girls to total students? A.18:30 B.12:30(I PICK THIS) C.30:12 D.30:18 2.which of the following ratios are equivalent to 6:9? Choose all that apply. A.3:2

14. ## History-The Early Greeks

How did early Greek civilizations use their natural surroundings to prosper and grow?

15. ## physics

A jumper of mass m=55 kg starts in a crouched position with the jumper's center of mass at a position y1=0 m. Just before the jumper leaves the floor, his or her center of mass is at y2=0.7 m. From another measurement, you have found that the velocity of

16. ## my math

True or false? Intentionally writing a check on an account with insufficient funds is allowed under certain conditions. I say false? Ben Spender writes a \$50 check which is returned by his bank with additional charges. The company he wrote the check to,

17. ## Math

A nursery sells Kentucky Blue Grass seed for \$5.75 per pound and Tall Fescue seed for\$4.50 per pound. The nursery sells a mixture of the two kinds of seed for\$5.25 per pound. Let k represent the amount of Kentucky Blue Grass seed the nursery uses in 5

18. ## Algebra

Why is a duplicate key like a small cake?

19. ## Ela and this is my last question

At the Earth’s Core Edgar Rice Burroughs 1 “Let’s have a look beyond that door, David,” he cried. 2 Together we stepped out to stand in silent contemplation of a landscape at once weird and beautiful. Before us a low and level shore stretched down

20. ## Math

What is the quotient of −920 divided by 40? Which integer rule determines the sign of the quotient? A) 23; The quotient of integers with unlike signs is positive. B) −23; The quotient of integers with unlike signs is negative. C) 23; The sign of the

21. ## physics

a person riding a bicycle whose wheels have an angular velocity of 20 rad/s. The brakes are applied, and the bike is brought to a stop through a uniform acceleration. During braking, the angular displacement of each wheel is 15.92 revolutions. How long

22. ## Chemistry

AgNO3 + NaCl → AgCl + NaNO3 . How many grams of NaCl would be required to react with 446 mL of 0.211 M AgNO3 solution? Answer in units of grams

23. ## calculus

Find the limit for the given function. lim t-->0 (sin(8t))^2/t^2

24. ## Math

nutrition scientists have determined that for long distance running in the desert, a drink containing 5.0 glycerol per 100 mL of water is ideal. convert this to ounces per quart. Round to two significant digits.

25. ## ELA

These are my absolute last questions. In which choice is the ellipses used correctly to revise the following sentence from Madame Bovary? To spare him expense his mother sent him every week by the carrier a piece of veal baked in the oven, with which he

26. ## ELA

7) What metaphor does the author use to help readers understand how the "fight or flight" response works in humans? A) a boss calling a meeting B) the body is supercharged C) a caveman running from a tiger D) the heart is an automatic weapon It might be b.

27. ## ELA

Find the direct object in the sentence. Fisherman collect many worms at night. Which identifies the direct object in the sentence? a.night b.worms c.many d.fisherman I think it is b.

28. ## Physics

A horizontal spring(k= 86.2 N/m) is placed on a countertop and is compressed a distance of 36.3 cm. A 103.5 g object is placed at the end of the spring. The coefficient of kinetic friction between the object and countertop is measured to be .47. What

29. ## Math (Geometry)

What is the converse of this statement: if two angles are supplementary and congruent, then they are right angles.

30. ## Math

How do I write the equation for this. Eight less than twenty.

31. ## chemistry

2.) If the volume of a gas at -73 degrees celcius is doubled while pressure is held constant, what will be its final temperature in degrees celsius? 5.) A gas storage tank at a large industrial plant is designed to provide fuel under constant pressure.

1. What marked the beginning of agriculture in the Americas? A. Native people began raising goats. B. The !@#\$%^& was invented. C. Native people began growing maize.(I PICK THIS) D. The Spanish arrived. 2. Aztec aqueducts were an important accomplishment

33. ## Math

On a centimeter dot array, draw all possible rectangles with an area of 16 sq cm and sides whose lengths are whole centimeters. Label the lengths of two adherent sides of each rectangle

34. ## math

what is three less than 11 times a number is the same as the number decreased by 13. find the number

35. ## calculus

find the derivative of y= 3-secx/tanx

36. ## math

last year Jodie invested \$10000, part at 6% anual intrest and the rest at 8% annual intrest. if she received \$760 in intrest at the end of the year how much did she invest at each rate. help is much appreciated plz help!!

37. ## Algebra

Solve by graphing. Check your solution. y > 2 y > -x + 2 Am I supposed to graph this one on a line or on an actual graph? Thank you.

39. ## Math

Which quotient is equivalent to 3 3/4? A.3÷4 B.12÷3 C.15÷4 D.4÷15

40. ## Math

What is the quotient of 1/4÷4?

42. ## Math

The 24 students in Mrs. Merchiore's homeroom sold 72 magazine subscriptions. The 28 students in Ms. Chapman's homeroom sold 98 magazine subscriptions. Whose homeroom sold more magazine subscriptions per student? How many?

44. ## Physics

The horizontal position of a car in a parking lot can be specified by providing its x and y coordinates. At time t = 0 s the car is located at x = y = 0 m. The Figure below shows the position of the car at 1 s intervals, starting from t = 0 s. It turns out

45. ## math

In a soccer league, the ratio of boys to girls is 4 to 6. There are a total of 50 players in the soccer league. Determine how many girls play in the soccer league

46. ## chemistry

I need to identify the elements oxidized and reduced and indicate which substances are the oxidizing and reducing agents for the redox reaction: PH3(g) + O2(g) → P2O5(s) + H2O(g)

47. ## ELA

Which sentence has a conditional verb mood? A) If you score another touchdown, your team will win. B) At last week's football game, you scored two touchdowns! C) I wondered who scored a touchdown at the football game? D) The team that scores the most

48. ## ELA

If I _____ the principal, I'd start school later in the day so students could sleep in, Bernardo thought. Which of these correctly forms the subjunctive mood? A) was B) were C) had been D) would have been I think it might b or c.

49. ## ELA

Which sentence is written in the subjunctive mood? A) Win the lottery, please! B) I won the lottery and donated half of it to charity. C) When I win the lottery, I will donate half of it to charity. D) I might win the lottery one day if I'm really lucky. I

50. ## Spelling/Language Arts

What word means "To overpass across water?" It has to have the J sound.

51. ## Math

- 4 + 8 -10 + (-2) Which expression shows the commutative property? A) -2 - 10 - 4 + 8 B) 4 - 8 + 10 + 2 C) 8 + 4 - 2 + (-10) D) 2 - 10 + 4 + 8 This is my weakest topic, but i think it might be d.

52. ## Math

8) Simplify. -2(3)2 - 8 ÷ 2 + 6 A) -18 B) -16 C) -7 D) 7 um I it is b

53. ## Math

1. Which equation correctly applies the distributive property? A. −3⋅(6.48)=(−3⋅6)+(−3⋅0.4)+(−3⋅0.08) ​ ​B. 2.4⋅(−3.4)⋅(−1.25)=−3.4⋅2.4⋅(−1.25) ​ ​C. (42⋅3.5)+(42⋅1.3)+(42⋅5.2)=42+(3.5+1.3+5.2) ​ D.​

54. ## Social Studies

Put the following events in chronological order. I had already filled them in I just need somebody to confirm it is right. 6 Mao announces his "Cultural Revolution" 2 A group of young Chinese men, including a young teacher, Mao Zedong, meet in Shanghai to

55. ## Science

Which organelle of a prokaryotic cell contain genetic information? a. cell membrane b. ribosomes c. nucleus d. nucleoid I think it is a.

56. ## SS

Correctly identify ALL that happened with the rebuilding Japan after WWII. A) The U.S. divided Japan along the 17th parallel line in order to occupy both nations and prevent the spread of communism. B)Japan adopted a new constitution and democratic

57. ## Science

How does salmon increase the chances of the survival of it species? a.lays a thousand eggs b.splits into two c.nurtures it young d.lays one egg I think it is a.

58. ## Science

In order to reproduce, flowering plants must do what? A. split into two cells B. release seeds C. regenerate D. mate I think the answer is b.

59. ## Science

How can the body of an animal stay healthy? a.fighting disease b.making food c.getting enough sunlight d. reproducing I think it is c.

60. ## Mathematics

Gina pulls -0.2 as her first card. What must her second card be in order for her to have a positive answer? The answer should be anything positive, right?

61. ## Physics

A satellite is orbiting a distant planet of mass 9.6e25 kg and radius 86700 km. The satellite orbits at a height of 8610 km above the surface of the planet. a) Determine the acceleration due to gravity at the location of the satellite orbit. b) Determine

62. ## Mathematics

Using a pair of compasses, a ruler and a pencil, construct a triangle CDE in which DE =10cm, DC= 8cm and angle DE= 45 degree

63. ## Physics

when loading a toy launcher, a spring is pulled back 15 cm. the spring is known to have a spring constant of 315 N/m. A small object of mass 4.46 g is place at the end of the spring. What acceleration will the object experience the instant the spring is

64. ## Physics

A turntable rotating at 33 1/3 rpm is shut off. It brakes with constant angular deceleration and stops in 26 seconds. Find the average angular acceleration. I took 33 1/3 divided by 26 and then tried to convert to rad/s^2 but I keep getting the wrong

65. ## english

circle the simple subject

66. ## Math

Jeremy collected nickels for 1 week. He is making stacks of his nickels to determine how many he has. The thickness of 1 nickel is 1/16 inches. -How tall is a stack of 16 nickels? -What is the combined height of 3 nickels, 2 nickels, and 1 nickel?

67. ## Science

The density of ocean water depends on the depth because pressure compresses the water. If the density of ocean water at a depth of 10,000 m is 1.071 g/mL and if 25.0 g of water at that depth contains 190 mg of potassium chloride, what is the molar

68. ## geometry

a monster truck's is 8 ft in diameter. during the last event, the tire rolled for 3 miles. how many revolutions did the tire make? 3(5280)

69. ## Calculus

Determine the equation of the tangent line at the indicated -coordinate. f(x) = e^(-0.4x) * ln(18x) for x= 3 The equation of the tangent line in slope-intercept form is

70. ## physics

A small rock passes a massive star, following the path shown in red on the diagram above. When the rock is a distance 4e+13 m (indicated as d1 on the diagram) from the center of the star, the magnitude of its momentum p1 is 1.1e+17 kg ·m/s, and the angle

71. ## science

A hoop of mass M = 4 kg and radius R = 0.4 m rolls without slipping down a hill, as shown in the figure. The lack of slipping means that when the center of mass of the hoop has speed v, the tangential speed of the hoop relative to the center of mass is

72. ## Science

What are ten observations made by Charles Darwin on his voyage and what are their significance?

73. ## Algebra 1

For the points R (9,4), A (-2,4) and T (9,3),find the length of the hornizontal and vertical sides of the figure.

74. ## Algebra 1

Explain why any two regular n-sided polygons would be considered to be similar and how knowing this information could help in solving real-world problems.

75. ## Algebra 1

A circular pool has a diameter of 12 feet. The pool is 5 feet deep everywhere. How much water is needed to fill the pool?

76. ## physics

A 8.05- g bullet from a 9-mm pistol has a velocity of 346.0 m/s. It strikes the 0.785- kg block of a ballistic pendulum and passes completely through the block. If the block rises through a distance h = 16.04 cm, what was the velocity of the bullet as it

77. ## Algebra 1

A train travels on a 30 mile long circular track that surrounds an entire city. What is the area of the city rounded to the nearest half mile?

78. ## algebra 1

Once trees grow to a certain height, the trunks quit growing taller and only grow thicker. The forest rangers want to calculate the diameter of the cross-section of some trees in order to estimate how much they grew in the past year. They measured the

CHECK THESE MATH ANSWERS PLEASE 1. There are 18 boys and 12 girls in a math class.what is the ratio of girls to total students? A.18:30 B.12:30(I PICK THIS) C.30:12 D.30:18 2.which of the following ratios are equivalent to 6:9? Choose all that apply. A.3:2

modern mexico check answers 7. Which of the following was largely responsible for the Mexican Revolution? A. separation from Spain B. the overthrow of Maximillian(I PICK THIS) C. widespread poverty D. lack of women's rights 9.Why did the Mexican Revolution

81. ## socialstudies

can anyone please answer these 5 before i scratch my brain out.i did the rest but these i couldn't get What marked the beginning of agriculture in the Americas ? A.Native people began raising goats. B.The !@#\$%^& was invented. C.Native people began growing

82. ## Math

an algebra book weighs 6 oz less than twice as much as grammar book. if 5 algebra books weigh the same as 8 grammar books, how much does an algebra book weigh?

83. ## english

Identify the nouns and verbs in this sentence please. The Lord is my strength and my salvation; in him I will trust.

84. ## english

What are the nouns and verbs in this sentence? Life is full of choices, so I must learn to make good ones.

85. ## Math

Stephen earned \$55 last week. He spent 9% of his earnings on entertainment. What decimal represents this percent?

86. ## Pre-Calc

for the conic y=5x^2-40x+78 find an equation in standard form and its vertex, focus, and directrix

87. ## calculus

Suppose \$5000 is deposited in a bank account that compounds interest four times per year. The bank account contains \$9900 after 13 years. What is the annual interest rate for this bank account?

88. ## Math

Probability Review , How many different numbers can you make with the digits 2,3,and 4 if you can use each digit as many times as you want?

89. ## History-The Early Greeks

Why did the use of money help trade to grow?

90. ## History-The Early Greeks

Name three rights granted to Greek citizens that American citizens have today.

91. ## History-The Early Greeks

Why did the use of money help trade grow?

92. ## Math, mathematics of finance

I am stuck on these two math questions. If nyone could help me solve them it would be greatly appreciated! Here is the information: Engineering estimates indicate that the variable cost of manufacturing a new product will be \$35 per unit.Based on market

93. ## Math

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

94. ## Math

If both masses are increased by 60% and the distance between them is halved, by what percent will the force of attraction increase?

95. ## science, ocean currents

waste produced by people in delaware has been dumped into the atlantic ocean, where it is distributed by surface ocean currents. which coastal area is most likely to become polluted by this waste

96. ## science, ocean currents

waste produced by people in delaware has been dumped into the atlantic ocean, where it is distributed by surface ocean currents. which coastal area is most likely to become polluted by this waste

97. ## geometry

The hypotenuse of a right triangle is 25 cm long. One leg of the same triangle is 7 cm long. What is the length of the other leg? Explain how you found your answer.

98. ## Calculus/Trigonometry

What is the value of x in the equation of an ellipse??? Equation of an ellipse - (x^2/a^2) + (y^2/b^2) = 1

3L+2k = 45