# Questions Asked onFebruary 19, 2012

1. ## chemistry

Assuming equal concentrations, rank these aqueous solutions by their freezing point.? K2CO3, Li3PO4, Sn(ClO3)4, NH4I I tried to rank them according to the number of ions but i can't get it. highest freezing point --> lowest freezing point Sn(ClO3)4 ->

2. ## Chemistry hw

Assuming 100% dissociation, calculate the freezing point and boiling point of 3.13 m SnCl4(aq). Tf=? Tb=? My work: SnCl4 with 100% dissociation gives a van't hoff factor of 5, 1Sn 4+ ion and 4 Cl- ions deltaT = i x Kf x m for freezing point = 5 x 0.51C/m x

3. ## consumer math

1. Which of the following is an advantage of using credit cards? (Points : 1) Credit card accounts charge monthly interest. It is very easy to charge more than you can pay off each month. If you pay late, you will be charged a late fee. They are

4. ## Chemistry

Express the concentration of a 0.0510 M aqueous solution of fluoride, F-, in mass percentage and in parts per million. Assume the desnity of the solution is 1.00 g/mL Since, we're assuming the density I think that also means were assuming the volume.. but

5. ## Chemistry

Given that the vapor pressure of water is 17.54 torr at 20 C, calculate the vapor-pressure lowering of aqueous solutions that are 2.40 m in (a) sucrose, C12H22O11, and (b) aluminum chloride. Assume 100% dissociation for electrolytes. Sucrose Delta P = __

6. ## Physics

A uniform meter rule of mass 100g balance at a 40cm mark when a mass x is placed at the 10cm mark.What is x?

7. ## computer science

Declare a structure whose tag name is Emp and that contains these fields (in the following order): a double field named d, a character pointer named str, and an array of eleven integers named arr. * I'm good till here. In addition, declare a array named

8. ## geometry

A slide 4.1 meters long makes an angle of 35 degrees with the ground. To the nearest tenth of a meter how far above the ground is the top of the slide. Could someone please explain don't want just answer would like to know how to do the work.

9. ## Chemistry

A solution is made by mixing 42.0 mL of ethanol, C2H6O, and 58.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 C in torr? Values at 20C ethanol density: 0.789 g/mL & vapor pressure (torr): 43.9 torr water: denisty:

10. ## Chemistry

Bauxite ore contains aluminum oxide Al2O3(s) which is decomposed using electricity to produce aluminum metal and oxygen gas. What mass of aluminum metal can be procuced from 155g of aluminum oxide?

15. ## Geometry

Please help. The scale factor of ^RST to ^DEC is 3:13. What is the scale factor of ^DEC to ^RST?

16. ## Physics

A computer is reading data from a rotating CD-ROM. At a point that is 0.0368 m from the center of the disk, the centripetal acceleration is 274 m/s2. What is the centripetal acceleration at a point that is 0.0781 m from the center of the disc?

17. ## Chemistry

What is the equilibrium partial pressure of water vapor above a mixture of 37.5 g H2O and 62.5 g HOCH2CH2OH at 55 degree C. The partial pressure of water at 55 degree C is 118.0 mm Hg. Assume ideal behavior for the solution.

18. ## American history

"All powers not delegated to the United States by the Constitution . . . are reserved to the States respectively, or to the people." This language, drafted by _______ and incorporated into the _______ Amendment of the Bill of Rights was intended to address

19. ## math

How can you use subtraction to complete an addition pattern? use this exercise as an example: 32, 39, 46, 53, 60, 67.

The initial concentration of a reactant in a first order reaction is 0.620 molar. What will be its concentration after 3 half-lives? I did 0.620 -> 0.31 ->0.155 0.155M will be the concentration. Is this correct?

21. ## Algebra

The RideEm Bicycles factory can produce 140 bicycles in a day at a total cost of $10,200 and it can produce 160 bicycles in a day at a total cost of$10,900. What are the company's daily fixed costs? What is the marginal cost per bicycle?(How do I find

22. ## Geometry

1.) what is the length of the line segment whose endpoints are (1,1) and (3,-3)? 2.) what are the coordinates of the midpoint of the line segment whose endpoints are (c,0) and (0,d)?

23. ## Math

The sides of parallelogram 2x+y,3y-2x,5y-8,4x-3 are given in cm.find x and y and the perimeter of the parallelogram

24. ## Physics

Romeo takes a uniform 15.0-m ladder and leans it against the smooth (frictionless) wall of the Capulet residence. The ladder's mass is 20.2 kg and the bottom rests on the ground 3.07 m from the wall. When Romeo, whose mass is 70 kg, gets 93.2 percent of

25. ## geometry

In the figure below, the measure of arc AC is 88 degrees if angle ABC is equal to 88 degrees.

26. ## physics

An airplane starts from rest at the end of a runway and accelerates at a constant rate. In the first second, the airplane travels 1.11 m. What is the speed of the airplane at the end of the second second?

A midpoint of sequence of numbers. A. Mean B. Median C. Mode D. Zero I GOT B

28. ## HELP 6

Combinations of some type of designs or styles. A. Structures B. Patterns C. Numbers D. Conjectures B

29. ## Chemistry

A solution is made by dissolving 0.500 mol of HF in enough water to make 1.00 L of solution. At 21 C, the osmotic pressure of the solution is 1.35 atm. What is the percent ionization of this acid? This is what i did.. is it correct? (1.35 atm) =

30. ## Chemistry

An aqueous KNO3 solution is made using 72.5 grams of KNO3 diluted to a total solution volume of 2.00 liters. If the molarity of the solution is .359 M and the molality of the solution is .354, what is the mass percent of the solution?

31. ## CHEMISTRY

Predict the products of the following reactions. a)CH3-CH2-CH2-CH3+O2----> B)CH3-CH2-CH2-CH2-CH3+Br2----> c)CH3-CH=CH-CH3+Br3----> D) HEXENE+KMnO4--> E) HEXENE+Br2---->

33. ## psychology

Motives are internal states that activate behavior and give it direction. True or False

34. ## Chemistry

2C10H22 + 31O2 = 20Co2 + 22H2O What kind of reaction is this?

35. ## Physics

Two canoeists in identical canoes exert the same effort paddling and hence maintain the same speed relative to the water. One paddles directly upstream (and moves upstream), whereas the other paddles directly downstream. With downstream as the positive

36. ## Chemistry

The vapor pressure of chloroform is 173.11 mm Hg at 25 degrees celsius. A nonvolatile, nonelectrolyte that dissolves in chloroform is aspirin. Calculate the vapor pressure of the solution at 25 degrees celsius when 6.243g of aspirin (180.1g/mol) are

37. ## Math

Assume it costs Microsoft $4,300 to manufacture 7 Xbox 360s and$8,290 to manufacture 14. Obtain the corresponding linear cost function. C(x)= (what formula do I use to get the cost function, because I can't get it) What was the cost to manufacture each

38. ## pop

4. If your speeding car slams into a haystack and comes to rest, how will the IMPULSE that acts on it compare with slamming into a brick wall and coming to rest? A) The impulse will be more. B) The amount of impulse will be the same either way. C) The

39. ## physics

a 15gram bullet moving at 300m/s pass through z 2 cm thick sheet of foam and emerges with a speed of 90m/s find average force impeded its motion through the plastic.

40. ## math

change -312 degrees to radian measure in terms of pi

41. ## Chemistry

You have two gas-filled balloons, one containing He and the other H2. The H2 balloon is twice the size of the He balloon (let the He balloon have a volume of 1 -L and the H2 balloon. a volume of 2 L). The pressure of gas in the H2 balloon is 1 atm while

42. ## Chemistry

The vapor pressure of chloroform is 173.11 mm Hg at 25 degrees celsius. A nonvolatile, nonelectrolyte that dissolves in chloroform is aspirin. Calculate the vapor pressure of the solution at 25 degrees celsius when 6.243g of aspirin (180.1g/mol) are

43. ## MATH

A regular triangular pyramid has an altitude of 9m and a volume of 46.8cu. meters. Find the length of the edges and the lateral area of the pyramid.

44. ## Calculas

Find any critical numbers of the function. (Enter your answers as a comma-separated list.) g(t) = t sqrt6 − t , t < 13/3 I don't even know how to start out!

45. ## finite

Assume that the coin is flipped 10 times. What is the probability that both heads and tails occur?

46. ## physcis

reviews the concepts that are important in this problem. A golfer imparts a speed of 35.9 m/s to a ball, and it travels the maximum possible distance before landing on the green. The tee and the green are at the same elevation. (a) How much time does the

47. ## macroeconomics

if retiree benefits were frozen what would happen to total expenditures

48. ## physcis

Boat A negotiates a curve whose radius is 375 m. Boat B negotiates a curve whose radius is 150 m. Each boat experiences the same centripetal acceleration. What is the ratio of the speed of boat A to that of boat B?

49. ## Psychology

According to sociobiologists, it is adaptive for male courtship behavior to: a. desire stability b. idealize security c. be choosy d. be promiscuous My answer is A.

50. ## Psychology

Modeling others' behaviors has been shown to be significant factors in learning. Research on modeling (and aggression, explicitly) demonstrates that aggression correlates with: a. violence in the media b. male testosterone levels c. social class d.

51. ## Chemistry

A compound containing only C, H, and O was extracted from the bark of the sassafras tree. The combustion of 36.3mg produced 98.6 of CO2 and 20.2mg of H2O. The molar mass of the compound was 162 g/mol. Determine its empirical and molecular formulas

52. ## College Physics

Answer the following questions for a mass that is hanging on a spring and oscillating up and down with simple harmonic motion. Note: the oscillation is small enough that the spring stays stretched beyond its rest length the entire time. Options for each

53. ## pop

If a fast-moving object strikes you, you'll experience less force of impact if you can ____________________. A) increase the time the momentum decreases. B) shorten the time the momentum decreases. C) either shorten or increase the time, for the result is

54. ## Chemistry

How much 12 M HCl do you add to 1 L of water to obtain 0.2 HCl? Use this same approach to do the math for the dilution of 5.5 M of barium hydroxide solution to 0.5 M barium hydroxide solution.

55. ## HELP 15

A result from being multiplied A. Product B. Quotient C. Multiplier D. Expression I THINK ITS B R C

56. ## physics

An unclothed student is in 24 ◦ C room. If the skin temperature of the student is 37 ◦ C, how much heat is lost from his body in 6 min, assuming that the emissivity of the skin is 0.83 and the surface area of the student is 1.5 m2 . The

57. ## psychology

What are some movies that is related to the issues of child development and developmental psychology

58. ## physics

a 2kg block of wood rests on a long table top. a 5 gram bullet moving horizontally with speed of 150m/s is shoot into the block and stricks in it then block slides 270cm along the table and stops. find a)speed of block after impact b)friction force between

59. ## Algebra

Find a linear equation whose graph is the straight line with the given property. HINT [See Example 2.] Through (2, −3) and (1, 1) Which formula do I use? y2-y1/x2-x1 or y-y1=m(x-x1)[

60. ## Geometry

Please help. The scale factor of ^RST to ^DEC is 3:13. What is the scale factor of ^DEC to ^RST?

61. ## calculus

At t=0 , a particle starts at the origin with a velocity of 6 feet per second and moves along the x-axis in such a way that at time t its acceleration is 12t^2 feet per second per second. Through how many feet does the particle move during the first 2

62. ## Math, URGENT!

What is the decimal equivalent of 1,932% and how do you get the answer to the decimal equivalent?

63. ## College Math

Natasha drove from Bedingsfield to Portsmouth at an average speed of 100 km/h to attend a job interview. On the way back she decided to slow down to enjoy the scenery, so she drove at just 75 km.h, Her trip involved a total of 3.5 hours of driving time.

64. ## math

1. Find the expense at 60 cents a square foot of polishing the curved surface of a marble column in the shape of the frustum of a right circular cone whose slant height is 12 ft. and the radii of whose bases are 3ft 6in and 2ft 4in respectively.

65. ## math

An inverted square pyramid has a height equal to 8m and a top edge to 3m. Initially, it contains water to the depth of 5m. a. What is the initial volume of the water in the tank? b. If the additional water is to be pumped into the tank at the rate of 20

66. ## help 1

This number represents the equal number of parts that equal a whole in a fraction. A. Numerator B. Denominator C. Variable D. Expression i got b

67. ## math

The ratio of the volume to the lateral area of a right circular cone is 2:1. If the altitude is 15cm, what is the ratio of the slant height to the radius?

1) The reaction A + B + C = products has a rate law rate = k times A times C squared. Which of the following will result in an increase in the rate constant for the reaction? #1 - increasing the temperature #2 - adding a catalyst #3 - doubling the

69. ## math

what is the role of the null hypothesis

70. ## Chemistry

1. Nitric oxide reacts with bromine gas at elevated temperatures according to the equation, 2 NO(g) + Br2(g) = 2 NOBr(g) The experimental rate law is rate = k[NO][Br2]. In a certain reaction mixture the rate of formation of NOBr(g) was found to be 4.50 x

71. ## Chemistry

What is the % by volume of an alcohol solution prepared from 35 ml alcohol and 350 ml of water?

The vapor pressure of diethyl ether is 463.57 mm Hg at 25 degrees celsius. How many grams of aspirin C9H8O4, a non volatile nonelectrolyte (mw=180.1g/mol), must be added to 216.7g of ether to reduce the vapor pressure to 453.74 mm Hg. Ether=74.12g/mol so I

The common laboratory solvent diethyl ether (ether) is often used to purify substances dissolved in it. The vapor pressure of diethyl ether , CH3CH2OCH2CH3, is 463.57 mm Hg at 25oC. In a laboratory experiment, students synthesized a new compound and found

74. ## Psychology

The emotional risk factor that poses a significant danger to one's physical health is proneness to: a. Antagonistic anger b. depression c. loneliness and worry d. anxiety and helplessness I chose B.

75. ## algebra

Natasha has been saving money to buy a new pair of running shoes. The pair she wants cost $132. She currently has$80. She saw an ad in the paper that the store is having a "1/3 off sale" Does she now have enough money to buy the shoes? if not how much

The angle is less than 180 degrees, but more than 90 degrees. A. Obtuse angle B. Right Angle C. Acute Angle D. Triangle A

The remaining amount after deductions in salary. A. Gross B. Net C. Fiscal D. Tariff I GOT GROSS

78. ## eng 22

Which of the following leads to the deepest appreciation of a film? Turning off your brain completely and letting life’s pressures slip away Paying attention to what a film is trying to say Learning the technical names of a film’s elements Learning the

A holder in an investment. A. Stakeholder B. Accountant C. Executive D. Assistant A

80. ## HELP 5

Acceptance, Perception and Conclusion A. Customs B. Beliefs C. Traditions D. Rituals B

To assume all are the same and to categorize A. Ethnocentrism B. Prejudice C. Stereotype D. Racism i got b

82. ## Chem 100 Lab

A black solid is heated in a tube that is completely evacuated of air. Hydrogen is added to the tube. An orange powder is formed and water vapor is seen on the outside of the tube. Is the original solid an element or compound? Can you identify the

83. ## HELP11

A line horizontally drawn from the center of the circle. A. Radius B. Axiom C. Circumference D. Vertex A

84. ## Math

solutions to the problem what four-digit whole number satisfies the following conditons? The sum of the digits is 6; the number is less than 1200; none of the four digits are equal; and the tens digit is an odd number.

85. ## HELP 13

Practices by a certain group of people A. Customs B. Beliefs C. Traditions D. Norms C

86. ## HELP12

A group that has exclusive business rights and titles. A. Company B. Corporation C. Investment D. Proprietorship D

87. ## Qauntitative Analysis for Mgmt

Your company uses 1,500 per year of a certain subassembly that has an annual holding cost of $45 per unit. Each order placed costs$150. The company operates 300 days per year and has found that an order must be placed with the supplier 6 working days

The vapor pressure of chloroform is 173.11 mm Hg at 25 degrees celsius. A nonvolatile, nonelectrolyte that dissolves in chloroform is aspirin. Calculate the vapor pressure of the solution at 25 degrees celsius when 6.243g of aspirin (180.1g/mol) are

A reaction has a rate law, rate = k times A times B squared. What is the overall order of the reaction. I think that the order is 0. Is this correct?

90. ## Geometry

Please Help. You make a scale draing of a garden plot using the scale 2in.= 17ft. If the length of a row of vegetables on the drawing is 3 in.,how long is he actual row?

91. ## English

Identify the participial phrase in the sentence below. Rising early, I saw the sun come up. A.Rising early B. saw the sun C. come up D. in the distance Thanks for the help :)

92. ## trig

y= sin x/2, 0 less than equal to x less than equal to 4pi... the question says state the amplitude and period for each equation and graph it over the indicated interval

93. ## algebra

what number is equivalent to this expression,(4 x 9 - 13) - 15 divided by 5 x 2 - 1??? can someone help me with this.

94. ## math/geometry

An architect is designing a small A-frame cottage for a new resort area. A cross section of the cottage is an isosceles triangle with an area of 98 square feet. The front wall of the cottage must a accommodate a sliding door that is 6 feet wide and 8 feet

95. ## geometry

if JKLM is a rectangle if jl = 4x - 12 and MK = x what is the value of x? what is the length of the diagonal?

96. ## Chemistry

The vapor pressure of diethyl ether is 463.57 mm Hg at 25 degrees celsius. How many grams of aspirin C9H8O4, a non volatile nonelectrolyte (mw=180.1g/mol), must be added to 216.7g of ether to reduce the vapor pressure to 453.74 mm Hg. Ether=74.12g/mol This

97. ## science(chemistry)

complete the following reaction: 1.CH3-CH-_CH2+H2O 2.CH2-CH2+Br2

98. ## physics

Boat A negotiates a curve whose radius is 336 m. Boat B negotiates a curve whose radius is 160 m. Each boat experiences the same centripetal acceleration. What is the ratio of the speed of boat A to that of boat B?

99. ## physics

A 2490 kg demolition ball swings at the end of a 35.9 m cable on the arc of a vertical circle. At the lowest point of the swing, the ball is moving at a speed of 7.26 m/s. Determine the tension in the cable.

100. ## world history

who ruled over babylons last era greatness

101. ## argumentitive essay

the authorites in your country are considering the introduction of sunday racing in order to boost the industry room a finical sperspective. write an argumentitive essay to support or oppose this view.

102. ## math

Transform the following. Do not evaluate. log (3*4) log 3^4

103. ## bio

How does the surface area-to-volume ratio of a 1-mm cube compare to the surface area-to- volume ratio of a 3-mm cube? 1. The ratio does not change. 2. The ratio increases as the cube becomes larger. 3. Increasing the volume increases the ra- tio. 4. The 3

104. ## calculus

f(x)=e^x-x (a) at what x-values does f have relative extrema? (b) find the exact value of -1 to 1 on an interval f(x)dx. (c) show that f does not have any inflection points.

105. ## math

convert each point,P(x,y)to the ordered pair P(r cos theta ,r sin theta).round all valuas of r to one dicimal place and all values of theta to the nearste degree. (a) (4,6) (b) (-3.7) (c) (10,-23)

106. ## english grammarrrrrrrrrrrrr help

Hi, I really need help to fix my grammar and to double check my answer Write several paragraphs for someone who has just watched the same movie you did. They didn't know the story before watching the movie, and are wondering what was changed from the

107. ## Math

if f is an exponential function, and f(5)=20 and f(9) = 14, use the add-multiply property to calculate f(13),f(17), and f(21). Show your method

108. ## math

the volume of an equilateral triangular frustum is 183 square root of 3 cubic inches. The upper base, 9in above the lower base, has an edge which measures 8in. Compute for the edge of the lower base.

109. ## physics

A car accelerates at a constant rate from zero to 20.5 m/s in 10 seconds and then slows to 15.9 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?

110. ## help 2

A decrease in purchasing power A. Debt B. Gains C. Depreciation D. Gains i got a

111. ## English

Hello. I will be very grateful for your help. 1)Which is correct: "he called me a)in an hour, b) after an hour"? 2)Is it possible to use "dismiss" in the context: "Many plants and factories are now dismissing workers"? 3)Is it possible to use "convert" in

112. ## chemistry

Calculate the number of molecules of NBr3 in 25.0 g NBr3. Use a molar mass with at least as many significant figures as the data given.

113. ## phoenix

What type of negative experiences, if any, have you had from social media?

114. ## chem

I think I figured out the answer for the net ionic, I wanted to know if this is right? and What is the superscript for it? Co+ (aq) + 2 OH- (aq) = Co(OH)2 (s)

115. ## phoenix

What type of negative experiences, if any, have you had from social media?

116. ## MATH

knowledge : point (-3,-4)is on the terminal arm of an angel (alpha) in stander position.verify that (sin alpha)2 + (cos alpha )2 =1

117. ## bio

How does active transport differ from passive transport? 1. Molecules move down a concentration gradient in active transport. 2. Carrier proteins are used only in active transport. 3. Energy is required only in active trans- port. 4. Energy is required

118. ## Math

Find all real solutions of the equation. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.) 17x3 − x + 3 = x3 + 24x2 + x

172. ## law

Jennifer Wilbanks, the so-called “Runaway Bride” from 2005, disappeared just before her wedding. When she resurfaced, she wove a story of kidnapping and sexual abuse by a Hispanic man. She later admitted to her lies and confessed that she had run away

173. ## Math

55/3 as fractions

174. ## algebra

Tanslate this sentence into an equation. " 48 is 4/9 of Malik's height"

175. ## math

a sales representative earned four times as much in the fourth week of jan than any other week in jan what is the income for the fourth week

176. ## Englisg

I'm finding extremely difficult to rephrase this letter taken from Richardson's Pamela. I really need your help. 1) In letter XV of Richardson’s Pamela, Pamela recounts to her mother what happened to her as she was concluding her previous letter. 2) Mr.

How would I find the molality of NaCl with the following information? initial temperature= 98degrees celsius final temp=100 degrees celsius. Kbp(water)=0.512

178. ## physics

How far from the center of the earth must a person be to experience acceleration due to gravity that is one half the acceleration at the surface?

179. ## CHEM

In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 47.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse

180. ## English

Does this sentence make sense: After interviewing my neighbor, who does not want to release her name, so I will call her Ms.Smith,.....

181. ## math

solve 3.7^4*x = 9271

182. ## physics

HOw many cubic meter of water will an air tight rectangle box with a mass of 8000 kg and dimensions of 10m long 5m wide 3m tall displace when dropped in water? will it float?

183. ## Math

if h(t) = 17.4 * 1.23^t, find t when z(t) = 144

184. ## statistics

Suppose that the weights of airline passenger bags are normally distributed with a mean of 48.08 pounds and a standard deviation of 3.13 pounds. A)Let X represent the weight of a randomly selected bag. For what value of c is P(E(X) - c < X < E(X) +

185. ## calculus

integral from 0 to pi of 9+6cos((pi/25)y)+cos^2((pi/25)y)

186. ## Math

A race car starts from rest on a circular track of radius 565 m. The car's speed increases at the constant rate of 0.520 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the following. (a) the speed of

187. ## Math

A car travels due east with a speed of 42.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 70.0° with the vertical. Find the velocity of the rain

188. ## writing

I'm Writing a Discursive Essay on the topic "is it more difficult to be a young person today then it was 50years ago", I have these main points: "we have technology but its brought us media pressue" "Better education system but with more pressue to succed"

189. ## algebra

Snowfall Suppose 5 inches of snow fall before noon and 2 inches per hour fall thereafter until 10 P.M. (a) Write a formula that calculates the snowfall S in inches, x hours past noon. (b) Use your formula to calculate the total snowfall at 8 P.M. (c) How

190. ## science

i need this answered for me haha^^ i have no clue.. ''a solute was mixed with a solvent, some of the solute fell to the bottom of the test tube, what happend?'' plzzzz answerrr xD

191. ## physics

A grandfather clock uses a physical pendulum to keep time. The pendulum consists of a uniform thin rod of mass M = 7.01 kg and length L = 0.15 m that is pivoted freely about one end, with a solid sphere of the same mass, 7.01 kg, and a radius of L/2

192. ## chemistry

I^- H5IO6 BrO2 HClO I2 Which could not disproportionate?

193. ## HELP 7

Converting Terminology via computers. A. Cryptography B. Technology C. Geometry D. Geology B

194. ## Calculus

Which of the following is a point at which the tangent to y=(x-2)^2(x+3) is horizontal? a) (-2,16) b) (-1, 18) c) (1,4) d) (2,0) I found the derivative of y=(x-2)^2(x+3) which is 3x^2-2x-8 if I solved for 0, it wouldn't give me the answer that are listed

195. ## help 8

The ability for a business to pay all that is owed. A. Technology B. Strategies C. Obsolesce D. Solvency D

Basing the Results on Probability A. Calculation B. Abstraction C. Classification D. Relation C

197. ## Calc

At noon, ship A is 50 nautical miles due west of ship B. Ship A is sailing west at 15 knots and ship B is sailing north at 18 knots. How fast (in knots) is the distance between the ships changing at 6 PM? (Note: 1 knot is a speed of 1 nautical mile per