# Ryan

Popular questions and responses by Ryan
1. ## Easy Math??

The stock that Mr. Ames bought cost him \$80 a share. The par value of the stock is \$100. If the stock pays \$6 a year in dividends, what rate of interest is Mr. Ames getting on his money? A.16 2/3% B.7 1/2% C.3% D.6% E.None of the above Personally, what

2. ## Statistics

The weight of a bag of corn chips is normally distributed with a mean of 22 ounces and a standard deviation of 0.5 ounces. -The probability that a bag of corn chips weighs more than 21 ounces is? -The probability that a bag of corn chips weighs between

3. ## Statistics

Does a football filled with helium travel farther than one filled with ordinary air? To test this, the Columbus Dispatch conducted a study. Two identical footballs, one filled with helium and one filled with ordinary air, were used. A casual observer was

4. ## Trigonometry

if cos x=2/3 and x is in quadrant 4 find tan(x/2),sin(x/2),and cos(x/2) i got sin(x/2)=squr 1/6 tan(x/2)=squr 2/6 cos(x/2)=squr 5/6

5. ## Chemistry, Vapor Pressure

Select the pair of substances in which the one with the higher vapor pressure at a given temperature is listed first. 1. C7H16, C5H12 2. CCl4, CBr4 3. H2O, H2S 4. CH3CH2OH, CH3-O-CH3 5. Xe, Kr

6. ## CHemistry

SO2(g) + H2O(l)= H2SO(l) What mass of sulfur dioxide is needed to prepare 36.86 g of H2SO3(l)

7. ## physics

A rubber band has a"spring constant" of 45 N/m. When the rubber band is pulled by a force of 9.8 N , how far will it stretch and what is potential energy?

8. ## trig

Given that tan B= 7/24 with B in quadrant III, find sin 2B, cos 2B, and tan 2B, using angle identities.

9. ## Trigonometry

1. sin^2 theta+cos theta=2 (Hint: Use the Pythagorean identity sin^2 theta+cos theta=1 to replace sin^2 theta in the given equation.) I got no solution

10. ## Chemistry

How many grams of zinc metal are required to produce 2.00 L of hydrogen gas at STP according to the chemical equation shown below? Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)

11. ## Chemistry

What volume does 3.01 x 10^21 molecules of N2 occupy at STP?

12. ## Math

Find how many quarts of 4% butterfat milk and 1% butterfat milk should be mixed to yield 90 quarts of 2 % butterfat milk.

13. ## chemistry

In a thermonuclear device, the pressure of 0.050 liters of gas within the bomb casing reaches 4.0 x 106 atm. When the bomb casing is destroyed by the explosion, the gas is released into the atmosphere where it reaches a pressure of 1.00 atm. What is the

14. ## algebra

Monica earned \$60 from a bonus plus \$8.50 per hour (h) she worked this week. Which of the following expressions best represents Monica's income for the week?

15. ## Precal 12

What is the value of k in the function f(x) = (2-k)/(5x+k) if its graph passes through the point (3, -2/19) A. -19/2 B. 4 C. -10 D. No such k exists I think its D, but I am not sure. Please help quickly.

16. ## Math

Parallelogram ABCD is inscribed in a circle. Then, the measure of angle A must be 90?

17. ## physics

A ball is dropped from an upper floor, some unknown distance above your apartment. As you look out of your window, which is 1.5 m tall, you observe that it takes the ball 0.18 seconds to traverse the length of the window. Determine how high above the top

18. ## math

7136 divided by 8 I am working in a work book and the answer is 892, but I can't figure how? can someone break it down for me.

19. ## Math

One angle of an isosceles triangle is 28°. What are the other 2 angles? (Choose all that apply.) 76 degrees and 76 degrees 116 degrees and 116 degrees 28 degrees and 152 degrees 28 degrees and 124 degrees

20. ## english

Which of the following is important for an introduction in formal or academic writing? Entertaining the audience Establishing the key point the piece of writing will make Discussing your opinion on the topic for at least three sentences Providing all of

21. ## chemistry

write the steps of complete ionization of carbonic acid and hydro sulfuric acid.

22. ## Geometry

A trapezoid has an area of 166.5 in.², a height of 9 in., and one base measuring 15 in. What is the length of the other base?

23. ## english

Identify the subject, object, and verb in this sentence: Paralegals need strong ethics. need is verb paralegals is subject strong is object am i right

24. ## Algebra 2

To solve 49(3x) = 343(2x+1), write each side of the equation in terms of base what? . In the brackets are powers. I tried to solve this but I don't understand I believe it is the first base you go off from but I'm not sure what I'm doing and a reassurance

25. ## Chemistry

Using the given boiling points, predict which compound has the higher vapor pressure at a given temperature. A. ethanol (C2H6O, bp 78 degrees C) or 1-propanol (C3H8O, bp 97 degrees C) B. hexane (C6H14, bp 69 degrees C) or octane (C8H18, bp 125 degrees C)

26. ## geometry

use Euler's formula to find the missing number. Vertices: 10 Edges: 29 Faces? This just totally confuses me

27. ## V/CV OR VC/V PATTERN

SORT EACH SPELLING WORD BY V/VC OR VC/V PATTERN: TYRANT,EQUAL,HUMOR,RECENT,PROFILE,LINEN,CLOSET,STUDENT

28. ## math

A=1/2h (b1 + b2) Solve for b1 A=1/2h (b1 + b2) Solve for b1 I assume this is A = (1/2)(h)(b1 + b2); i.e., the h is in the numerator and not the denominator Multiply both sides by 2. 2A = (2*1/2)h(b1 + b2). 2*1/2 on the right side is 1. 2A = h(b1 + b2)

29. ## Math

Petra is practicing factoring by grouping. She wants to factor the polynomial 16xy−4x^2+28y−7x. Her work is shown below. 16xy−4x^2+28y−7x 4x(4y−x)+7(4y−x) (4x+7)(4y−x) Which statements regarding Petra’s work are true? There may be more than

30. ## Chemistry

If you have 320.0 mL of water at 25.00 °C and add 110.0 mL of water at 95.00 °C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.

1.If tan theta=3/4 and theta is an acute angle, find cos theta. 2.If sin theta=12/13 and theta is an acute angle, find cot theta.

32. ## Chemistry

Imagine that a hypothetical life form is discovered on our moon and transported to Earth. On a hot day, this life form begins to sweat, and it is determined that the heat of vaporization of its sweat is 155 cal/g. The scientist observing the

33. ## calculous

Find the area of the region bounded by the parabola y = 4x^2, the tangent line to this parabola at (4, 64), and the x-axis.

34. ## math 100

When you take the Scholastic Assessment Test (SAT), your score is recorded as a percentile score. If you scored in the 92nd percentile, it means that you scored better than approximately 92% of those who took the test. If Lisa's score was 85 and that score

35. ## Chemistry

Perpare 500ml of 1M HCl solution from a bottle of concentrated 37%(W/W) HCL stock with a density of 1.19g/ml. 37%= 37/100 x 100 therefore mass is 37g molarity = mol/vol 1= mol/0.5 mol=0.5 mass of Hcl needed = molxmr mass = 0.5 x 36.5 mass = 18.25g

36. ## Algebra

After a 5% raise your new salary is \$ 63000. Before the raise your salary was?? Help. Please.

37. ## english

True or False: the following sentence demonstrates parallelism: Cameron is an actor, a writer, and former model. true

38. ## Math

I need help solving the problem not the answer. (Multiple Choice) The steps below show the incomplete solution to find the value of x for the equation 7x + 8 − 3x = −6 + 10: Step 1: 7x + 8 − 3x = −6 + 10 Step 2: 7x + 8 − 3x = 4 Step 3: 4x + 8 = 4

39. ## Math

A number has three distinct digits. The sum of the digits equals the product of the digits. How many three-digit numbers satisfy this condition?

40. ## english

Which of the following is a subordinate clause?

41. ## Geometry

A circle with the equation (x + 3)2 + (y - 2)2 = 25 is reflected over the line x = 2. What is the equation of the image?

42. ## geometry

can someone help me please on this question: What is the diameter of a cone with height 8 m and volume 150 m3 ?

43. ## Physics

The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 15 g nail when it is struck by a 550 g hammer moving with an initial speed of 5.1 m/s.

44. ## accounting

Kiddy Toy Corporation needs to acquire the use of a machine to be used in its manufacturing process. The machine needed is manufactured by Lollie Corp. The machine can be used for 10 years and then sold for \$11,000 at the end of its useful life. Lollie has

45. ## Math

The function h(t) = -16^2 + 120t + 300 gives the height in feet of a projectile fired from the top of a building after t seconds. When will the object reach a height of 350ft?

46. ## math 100

Find the standard deviation (rounded to the nearest unit) for the data indicated. Test Score Frequency 90 2 80 5 70 9 60 6 50 4 40 1 30 2 0 5

47. ## math 100

Find the standard deviation (rounded to the nearest unit) for the data indicated. Test Score Frequency 90 1 80 4 70 7 60 6 50 3

48. ## chemistry

The vapor pressure of liquid chloroform, CHCl3, is 100. mm Hg at 283 K. A 0.198 g sample of liquid CHCl3 is placed in a closed, evacuated 400. mL container at a temperature of 283 K. Assuming that the temperature remains constant, will all of the liquid

49. ## physics

When you go out to your car one cold winter morning you discover a 0.54 cm thick layer of ice on the windshield, which has an area of 1.6 m2. If the temperature of the ice is -4.1°C, and its density is 917 kg/m3, find the heat required to melt all the

50. ## college physics

Two blocks with masses m and M are pushed along a horizontal frictionless furface by a horizontal applied force. The magnitude of the force either of these blocks has on the other is: M being a bigger mass than m of course. I think the answer is: mF/(M-m)

51. ## math 100

A package of Toys Galore Cereal is marked "Net Wt. 12 oz." The actual weight is normally distributed, with a mean of 12 oz and a variance of 0.16. (a) What percent of the packages will weigh less than 12 oz? 50 Correct: Your answer is correct. % (b) What

52. ## geometry

The vertices of a triangle are P(–8, 1), Q(–6, –8), and R(4, –3). Name the vertices of the image reflected across the x-axis.

53. ## geometry

‹mÚR = 120‹ and mÚS = 100‹. Find mÚT. The diagram is not to scale.

54. ## Math

In parallelogram WXYZ, m

55. ## Probability again

A box contains 6 red balls, 4 blue balls, and 2 green balls. Three balls are randomly drawn (without replacement) from the box. What is the probability that the three balls selected are all the same color?

56. ## Math

What is an even number that has a 7 in the hundreds place,has an odd number in the thousands place and is a multiple of 10?

57. ## Chemistry

Carbohydrates (such as C6H12O6) undergo combustion with oxygen to produce carbon dioxide and water. Living things use this reaction (a process called respiration) to produce energy. Determine the mass of carbohydrates consumed for every 0.300 mol of oxygen

58. ## Chemistry

Carbohydrates (such as C6H12O6) undergo combustion with oxygen to produce carbon dioxide and water. Living things use this reaction (a process called respiration) to produce energy. Determine the mass of carbohydrates consumed for every 0.300 mol of oxygen

59. ## Chemistry

Carbohydrates (such as C6H12O6) undergo combustion with oxygen to produce carbon dioxide and water. Living things use this reaction (a process called respiration) to produce energy. Determine the mass of carbohydrates consumed for every 0.300 mol of oxygen

60. ## Math

A game is played using one dice. If the dice is rolled and shows 1, the player wins \$1; if it shows 2, the player wins \$2; if it shows a 3, the player wins \$3. If the die shows 4,5,or 6 the player wins nothing. a.) If there is a charge of \$1.25 to play the

61. ## English

Choose the word that best completes the sentences. One of the girls left _____ tennis shoes in the gym a. her b. hers c. their d. them I think its it A but it could also be c the best player to watch is ______ a. she b. her c. him d. me this one confuses

62. ## Trigonometry

Given the equation for simple harmonic method d=1/12 sin(60 pi t) answer the following questions: b)Find the frequency i got 60pi c)Calculate the value of d when t=3 d)Determine the least positive value of t for which d=0.

63. ## Trig Help

Given the equation for simple harmonic method d=1.3cos(3pi/4 t) answer the following questions: a)Find the maximum displacement. 1.i got 1.3 b)Find the frequency and length of the pendulum c)Calculate the value of d when t=3 i got .919 d)Determine the

64. ## Chemistry

When 50 grams of hydrocarbon X are burned with oxygen the products are carbon dioxide and water. If 65 grams of water and 100 grams of carbon dioxide are produced, how many grams of oxygen were needed for the reaction? This was a question on my chemistry

65. ## Easy Math??

Carol started from home on a trip averaging 30 miles per hour how fast must her mother drive to catch up to her in 3 hours if she leaves 30 minutes after Carol? Use an equation to solve your work. a.35 mph b.39 mph c.40 mph I heard that the answer is a,

66. ## Stoichiometry chem

How many moles of carbon are found in 250.0 g of CaCO3? I started off with finding the molar mass of CaCO3, which is 100.09g. From there I divided 250g by 100.09g, but I have no idea what to do from there.

67. ## Trig identities

Sin x/[1-cos(-x)] = csc x + cot x Please Verify the Identity. I have been going in circle with this one... Just a hint would be nice. Thank you.

68. ## Statistics

A history class is comprised of 5 female and 8 male students. If the instructor of the class randomly chooses 8 students from the class for an oral exam, what is the probability that 2 female students and 6 male students will be selected? Round your answer

69. ## calc 2

find the maclaurin series for: f(x) = (1-3x)^-5. What is the radius of convergence?

70. ## Global history

Compare and contrast European colonization of the Americas in the 16th and 17th centuries with European colonization of Africa and Asia in the 18th and 19th centuries. Be sure to address the motives for colonization and the impact that colonization had on

71. ## Economics

Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 41% of the viewing audience in the area. In a survey of 100 viewers, 36% indicated that they watch the late evening news on this local CBS station. What is the

72. ## Math

Suppose Meagan needs to drive the truck 10 miles to her new home. a) What is the cost of using Truck A? b) What is the cost of using Truck B? c) Which company offers the better deal at this mileage? 2. Suppose Meagan needs to dive the truck 30 miles to her

73. ## Chemistry

How much energy in kilocalories is needed to vaporize 255g of water? The heat of vaporization of water is 540 cal/g.

74. ## Calculus

A trough is 3 feet long and 1 foot high. The vertical cross-section of the trough parallel to an end is shaped like the graph of x^2 from -1 to 1 . The trough is full of water. Find the amount of work required to empty the trough by pumping the water over

75. ## geometry

Earth’s radius is about 4,000 mi. To the nearest mile, what is the distance a person can see on a clear day from an airplane 5 mi above Earth? help please!

76. ## triangles

The measures of two of the sides of an equilateral triangle are 3x + 15 in. and 7x – 5 in. What is the measure of the third side in inches?

77. ## Chem

An aqueous KNO3 solution is made using 82.7 grams of KNO3, diluted to a total solution volume of 1.50 L. The density of this solution is 1.05 g/mL. What is the molality of this solution?

78. ## Spelling

I need to unscramble the letters below to make a word. any ideas? Thank you! SENNWICAHDAR

79. ## math 100

The equation for a general normal curve with mean μ and standard deviation σ is y = e−(x − μ)2/(2σ2) σ 2π . Calculate values for x = 20, 30, , 70, 80 where μ = 50 and σ = 10. Note that setting μ = 0 and σ = 1 in this equation gives the

80. ## english

Question 1 Of the choices below, which sentence demonstrates parallelism? a. Sydney slept late on Saturday. b. Clint made a cake for dessert and had milk with it. c. To Kill a Mockingbird is a classic American novel about a young girl's journey to

81. ## english

PART ONE: Read the paragraph and identify the spelling and grammar errors. "Whenever I’m getting reading to eat my cat is always at my feet at the stove I am always tripping over him and swearing at him nevertheless he is such a funny creature how many

82. ## Physics 11

The diagram shows a collision between a 4.0 kg toy car and a stationary 8.0 kg toy truck. After the collision, the car bounces back at 1.0 m/s while the truck goes forward at 2.0 m/s. Based on these values, are momentum and kinetic energy conserved? Image

83. ## Biology

What are 2 advantages for binary fission in bacteria?

84. ## Math

How many sets of 3 primes sum to 20?

85. ## political science

Which of the following is NOT a component of judicial review? The supremacy of local laws when they conflict with national laws or treaties. The power of the courts to declare national laws invalid if they violate the Constitution The supremacy of national

Nigel cut a loaf a bread into 12 equal slices. His family ate some of the bread and now 5/12 is left. Nigel wants to put each of the leftover slices in its own bag. how many bags does Nigel need?

87. ## math

What is the slope of the budget line from trading with Friday (coconuts for fish)?

88. ## geometry

if a cone is 7.5 cm high and has a vertical angle of 70 degree calculate the diameter of its base.

89. ## Chemistry

Complete ionic equation and net ionic equation for 2 K3PO4 + 3 Fe(NO3)2 --> 6 KNO3 + Fe3(PO4)2

90. ## physics

Drag-race tires in contact with an asphalt surface have a very high coefficient of static fric.tion. Assuming a constant acceleration and no slipping of tires, estimate the coefficient of static friction needed for a drag racer to cover 2.1 km in 8 s,

91. ## Physics

An object moving along a horizontal track collides with and compresses a light spring (which obeys Hooke's Law) located at the end of the track. The spring constant is 38.6 N/m, the mass of the object 0.270 kg and the speed of the object is 1.20 m/s

92. ## Physics

In a vertical dive a peregrine falcon can accelerate at 0.6 times the free-fall acceleration (that is at 0.06g) in reaching the speed of about 100 m/c. If a falcon pulls out of a dive into a circular arc at this speed and can sustain a radial acceleration

93. ## geometry

Write the standard equation for the circle center (–6, 7), r = 9 please help i am confused on this one

94. ## geometry

if ÚAOC=49, mÚBOC=2x+10, and mÚAOB=4x-15 find the degree of measure of ÚBOC and AOB

95. ## geometry

Isosceles trapezoid ABCD has legs AB and CD and base BC If AB = 7y – 4, BC = 4y – 6, and CD = 8y – 18, find the value of y.

96. ## geometry

What is the sum of the angle measures of a 37-gon?

97. ## Chem5

A dioxin-contaminated water source contains 0.052% dioxin by mass. How much dioxin (in g) is present in 4.2 liters of this water? (Assume the solution density is 1.00 g/mL.)

98. ## Geometry

the area of a regular hexagon is 35" squared. Find the length of a side.