# 1)Find the sixth term of the geometric sequence for which a1=5 and r=3 A)1215 B)3645 C)9375 D)23 I chose A 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3... A)aN=-12(1/3)n-1 B)aN=12(-1/3)n-1 C)aN=-12(-1/3)-n+1 D)aN=-12(-1/3)n-1 I chose C 3)Find

92,916 questions, page 885
1. ## math

The buying and selling commission schedule shown below is from a well-known online discount brokerage firm.? Taking into consideration the buying and selling commissions in the schedule find annual rate of interest earned by each investment? Transaction

asked by b on May 2, 2013
2. ## Physics

Three spiders are resting on the vertices of a triangular web. The sides of the triangular web have a length of a = 0.85 m, as depicted in the figure. Two of the spiders (S1 and S3) have +7.7 µC charge, while the other (S2) has −7.7 µC charge. a)What

asked by Jimmy on January 12, 2014
3. ## AP Chemistry

What percent (by mass) of granulated sugar is fructose, and what percent of it is sucrose? Background: We are doing a colligative properties lab in my class where we are to add 20 grams, 40 grams, 60 grams, and 80 grams of sugar to 100 grams of water, and

asked by David on December 6, 2014
4. ## Introductory Accounting

The question is Burlin company starts the year with \$188,000 in assets and \$37,600 in liabilities. Net income for the year is \$47,000, and no dividends are paid. How much is owners' equity at the end of the year? So what I thought what i would have to do

asked by sarah on February 3, 2016
5. ## Math

For the pair of supply-and-demand equations, where x represents the quantity demanded in units of 1,000 and p is the unit price in dollars, find the equilibrium quantity and the equilibrium price. 2x + 9p - 93 = 0 and 3x - 14p + 108 = 0 a. equilibrium

asked by Kal Jay on October 21, 2016
6. ## Calculus Help

A high-speed bullet train accelerates and decelerates at the rate of 4 ft/s2. Its maximum cruising speed is 90 mi/h. (Round your answers to three decimal places.) (a) What is the maximum distance the train can travel if it accelerates from rest until it

asked by Ali on April 19, 2014
7. ## english

If there is a problem with a given sentence, write the letter corresponding to that problem in the appropriate blank. If there is no problem with the sentence, put “C” in the blank. A. Dangling/Misplaced Modifier B. Parallelism Error C. Correct

asked by Anonymous on May 3, 2012
8. ## Statistics

You look at the relationship between how much time people spend on the website ‘Bookface’ and how productive they are at work. time spent on Bookface is the predictor variable, and time spent working is the response variable. correlation between

asked by claire on March 22, 2017
9. ## CHEMISTRY

A) We have an experiment , using the solution of KNO3 , measured freezing point of solution is -1.15 degree , and using a sample of pure water the thermometer read o.25 degree as freezing point of the sample , calculate the molal concentration of KNO3

10. ## Math

A business woman intends to rent a car for a 3 day business trip. The rental is \$65 a day and \$.15 per mile (plan 1) or \$90 a day with unlimited mileage (plan 2). She is not sure how many miles she will drive but estimates that it will be between 400 and

asked by Anonymous on December 10, 2015
11. ## geography

Hello i have looked throughout my textbook and my question is cause i can't find it farmers in southeast Asia have adapted to the dry climate of the region by... A.Building Dams and irragation systems B. covering Large ares with forests. C. becaoming

asked by Amanda on November 19, 2009
12. ## Language Arts

1. One would expect people living in utopian society to be A. wealthy B. difficult C. idealistic D. impossible*** 2. Which statement best describes a utopian community? A. People band together to share resources and duties equally.*** B. Resources are

asked by Dude that smells on May 3, 2017
13. ## Chemistry

#3 a)What is the pH when 1.25L of a 0.200 M solution of the strong electrolyte NaH2PO4 is mixed with 1.00 L of a .150M solution of the strong electrolyte Na2HPO4? b)What is the pH if the volume of the solution in problem #3a is doubled? c) What is the pH

asked by Aletha on April 1, 2007
14. ## physics

A firefighter at street-level, 55.0 m away from a burning building, directs a stream of water from a fire hose at an angle of 35.0° above the horizontal. If the speed of the stream is 50.0 m/s, at what height will the stream of water strike the building?

asked by micole on May 16, 2007
15. ## MATH

Of all the videotapes in a large shipment, 21% have a defective tape, 16% have a defective case, and 11% have both defects. If you purchase one of the videotapes in this shipment, find the probability that it has the following. (a) A defective tape or a

asked by puzzled on January 30, 2011
16. ## College Calculus

Let f(x) = 3x^2 - 2x + 1 a) write an equation of the line going through the points (1, f(1)), and (2, f(2)). b) Find a point on the graph of f where the tangent line to the graph has the same slope as the line in part (a). Write the equation of the tangent

asked by NY-Calc on March 7, 2011
17. ## Physics

A block of mass m is placed in a smooth-bored spring gun at the bottom of the incline so that it compresses the spring by an amount x_c. The spring has spring constant k. The incline makes an angle theta with the horizontal and the coefficient of kinetic

asked by Trevor on March 13, 2011
18. ## Mathematics

Out of 65 players,11 play basketball only,11 play both basketball and cricket.The number of players who play cricket is twice the number of players who play basketball.By using a venn diagram find the number of players who play cricket only and who don't

asked by Bhawana on July 18, 2016
19. ## Env Science

Distinguish between high-quality energy and low-quality energy, and give an example of each. Relate these terms to energy efficiency Since this is not my area of expertise, I searched Google under the key words "'high quality' 'low quality' energy" to get

asked by Kim on July 9, 2007
20. ## PHYSICS (HELP!!!)

An object of mass m=80 kg moves in one dimension subject to the potential energy U(x)=λ4(x2−a2)2+b2x2.(1) Here we use λ= 9 kg/(m2s2), a= 9 m, and b= 719 kg/s2. (a) How many equilibrium points (stable and unstable ones) does this potential have? n= 1 2

asked by Anonymous on November 1, 2013
21. ## CHEMISTRY

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (a) Write a balanced chemical equation for the neutralization

asked by sabrina: I am having difficulties with this! on November 28, 2012
22. ## CHEMISTRY

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (a) Write a balanced chemical equation for the neutralization

asked by sabrina on November 27, 2012
23. ## CHEMISTRY

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (a) Write a balanced chemical equation for the neutralization

24. ## CHEMISTRY

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (1a) Write a balanced chemical equation for the neutralization

25. ## CHEMISTRY

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (1a) Write a balanced chemical equation for the neutralization

26. ## Chemistry

Find the unit cell (simple, bcc, fcc), type of holes where the smaller ions are found (tetrahedral, octrahedral, cubic), and number of cations and anions per unit cell for the following compounds: CdSe CsI Li2O KBr NaCl ZnS(I) i did this and i got most of

asked by kooler on February 15, 2010
27. ## math

May has 10 fewer marbles than Albert. May has 5 more marbles than Jenny. Albert gives4 marbles to Jenny. May gives another 6 marbles to Jenny. Jenny has 13 marbles now. Find the number of marbles each of them had at first. Jenny had 3 marbles. May had 8

asked by Savanah on January 5, 2015
28. ## Language Arts

Is my first paragraph of the essay good? Correct some mistakes. The Lightning Thief book and movie are different and same in many ways. The book of the Lightning Thief is more interesting and detailed for most people who read the book and watched the

asked by Justin on February 8, 2011
29. ## algebra/materials engineering

what phases are present in a slow cooled 1090 stell and how much of each of these phases are present? so the phases are cementite and pearlite and it's hypereutectoid. The formula is hypereutectoid=cementite(6.67%)+pearlite(0.8%) I know in a 1090 steel,

asked by Anonymous on October 18, 2010
30. ## algebra

Find the volume of a right circular cylinder whose base has an area of 6 cm^2 and whose height is 17 cm. am i right that V=(b1+b2)H Check the formula you used. The volume of a right circular cylinder is V=pi*(r^2)*h where r is the radius and h is the

asked by cassii on September 27, 2006
31. ## HELP!

What caused states to demand a constitutional Convention and explain why? What three issues caused the most conflict during the Constitutional Convention and why? How did the COnstitutional delegates solve these problems? Plese tell me good site and teach

asked by cc on October 19, 2006
32. ## English

Here is my rephrase. Actually, I don't have much time to find synonyms, so I hope you can help me. 1) At the beginning of the passage taken from Chapter sixteen of Robinson Crusoe,Friday is described as a fascinating, good-looking young man in his late

asked by Henry2 on January 17, 2012
33. ## English

1)Don’t use plastic bags but you must use….. (but use …… instead?) 2)He enjoyed the results of his experiments until he murdered an old man 3)He had to find which of/among Mr Williams’s servants had stolen a ring from.. 4)Civil rights for black

asked by Franco on January 7, 2010
34. ## social studies

1. Why was there so much migration after World War II in Europe? Select all that apply. A. New laws after the Allies won the war restricted Germans. B. Widespread damage after the war made people look for new housing. C. Shifting national boundaries made

asked by woah on April 4, 2019
35. ## Algebra

Ticket sale for a music concert was \$2,160. Three times as many tickets were sold for the Saturday night concert as were sold for the Sunday afternoon concert. Two times as many tickets were sold for the Friday night concert as were sold for the Sunday

asked by Tiffany on October 22, 2015
36. ## PHYSICS

The boom crane in the diagram is in static equilibrium and weighs 2000 N with its center of gravity in the middle of its length. It is supported by a frictionless pivot at the left end and a cable connected to the center of the boom and is supporting a

asked by JENNY on December 11, 2006
37. ## Algebra

3. To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a. Write an equation using only one

asked by Anonymous on March 17, 2009
38. ## Algebra

To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a. Write an equation using only one

asked by Micah on January 21, 2008
39. ## Algebra

3.To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a.Write an equation using only one

asked by NA on March 18, 2009
40. ## Algebra

To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a.Write an equation using only one variable

asked by Micah on January 21, 2008
41. ## Physics URGENT!!!!

1.A 75 kg passenger in a van is wearing a seat belt whent he van moving at 15m/s, collides with a conrete wall. The front end of the van collapses 0.50 m as it comes to rest. a) what was the paseenger's kinetic energy before the crash b) What average force

asked by kelly on April 9, 2011
42. ## Math- Algebra

To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a.Write an equation using only one variable

asked by Micah on January 21, 2008
43. ## Algebra

To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. Write an equation using only one variable

asked by Jack on April 8, 2008
44. ## calculus

When a ball is thrown vertically upward into the air with a velocity of 79 ft/sec its height, y(t), in feet after t seconds is given by y(t) = 79t − 16t 2 . Find the average velocity of the ball over the interval from 3 to 3 + h seconds, h 6=/= 0. 1.

asked by Morgan on December 1, 2014
45. ## US History

I need help with a cartoon. I can't find it online so I know it'll be hard to understand. Any help is appreciated! In the cartoon there's two men laying in bed one is Uncle Sam(the hat he wears is on the bed post) and I'm not sure who the other is, just a

asked by Sarah Beth on December 1, 2011
46. ## Chemistry

A student recorded the following data for copper sulfate pentahydrate. Weight of crucible and cover (after heating to constant weight), 28.120g Weight of covered crucible plus sample, 31.020g Weight of covered crucible plus sample after heating to constant

asked by Anonymous on November 8, 2009
47. ## phsyics

Posted by MELANA on Thursday, October 18, 2007 at 5:14pm. An object in equilibrium has three forces exerted on it. A 30 N force acts at 90° from the x-axis and a 44 N force acts at 60° from the x-axis. What are the magnitude and direction of the third

asked by MELANA on October 18, 2007
48. ## SS HELP FAST!!!

So, I Need Help On This One, I'd Like It If You'd Just Say What You Mean and Not Site a Site or anything like that, But, HELP!. The growth of China’s economy has caused pollution problems. Explain why the government continues to use coal-fired power

asked by Agala on December 13, 2016
49. ## math

the results of a survey of 100 households pointed to shoppers having a preference for house brand products in supermarkets It showed that of 280 households with a combined income of \$6000 per month, 71 reported buying house brand products from June to

asked by polishy on December 8, 2011
50. ## geometry

Lines M and T are parallel with a Transversal line P. [Labeling for the angles on line P intersecting M are, top right corner is angle 1, the top left is angle 2, the bottom left is angle 3, and the bottom left is angle 4. This pattern {top left, top

asked by John on January 25, 2012

Hi! Sorry to keep bothering you with questions. Can you help me on 6 and 13 please? I cannot find the answers. Also, can you check my answers to 11 and 19? Thanks! 6. If point A is located at (0, –8) and B is located at (4,–5), what is the distance

asked by Delilah on October 24, 2012
52. ## ap algebra

can you check my answers please? Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero. f(x) = 2(x - 2)(x + 4)^4 2, multiplicity

asked by Tyra on October 15, 2007

can you check my answers please? Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero. f(x) = 2(x - 2)(x + 4)^4 2, multiplicity

asked by Tyra on October 20, 2007
54. ## Social Studies

Who were the Sioux and what did they do in their everyday lives? Since this is not my area of expertise, I searched Google under the key words "Sioux Indians" to get these possible sources: http://www.newadvent.org/cathen/14017a.htm (Broken Link Removed)

asked by Nicole on October 10, 2006
55. ## Precalculus

To estimate the height of a building, two students find the angle of elevation from a point (at ground level) down the street from the building to the top of the building is 33 degrees. From a point that is 300 feet closer to the building, the angle of

asked by marie darling on April 26, 2013
56. ## math,algebra

can someone just set up the equations for me for this problem. thanks... Problem #1 A plane took 1 hour longer to travel 560 miles on the first portion of a flight than it took to fly 480 miles on the second portion. If the speed was the same for each

asked by jasmine20 on April 17, 2007
57. ## Algebra 2

A factory is producing DVD and Blu Ray discs. For each case of DVDs they make \$180 profit. For each case of Blu Ray they make \$250. The DVDs take 3 minutes of machine time and 7 minutes of labor. The Blu Rays take 4 minutes of machine time and 12 minutes

asked by Precious on January 31, 2012
58. ## Chemistry

In a experiment to determine the molecular weight and the Ka for ascorbic acid (vit. c.) a student dissolved 1.3713g of the monoprotic acid in water to make 50 mL of solution. The pH was monitored throughout the titration. The equivalence point was reached

asked by Tri on May 19, 2007
59. ## math

please check this. 1. What is a reasonable distance between two cities? A.200 km* B.200 m C.200 cm D.200 mm 2. 6,501.5 km = ? m = 6,501,500 m. 3.Find the perimeter of the rectangle with length 97 inches and width 17 inches.228 in.* 211 in. 1,649 in. 114

asked by Meep on May 22, 2017
60. ## Chemistry

At a particular temperature, K=3.75 for the following reaction. SO2(g) + NO2(g) (reversible arrows) SO3(g) + NO(g) If all four gases had initial concentrations of 0.500 M, calculate the equilibrium concentrations of the gases. K=(.5+x)^2/(.5-x^2) solve for

asked by Taasha on July 30, 2007
61. ## science leaf collection

Can someone give me a website with names and pictures of all kinds of leaves?If possible by today or tomorrow, I would really appreciate it. Thank you for helping me!!! Stacy =) This site has all kinds of leaf collection pictures.

asked by Stacy on August 19, 2007
62. ## Chemistry

Teh molar mass of a compund is 92.0g/mol. Analysis of the compound indicates that it contains .606g Nitrogen and 1.339g Oxygen. Find its molecular formula? I was wondering can oyu explain how you received your answer Convert grams to mols. mols nitrogen =

asked by mZ. YoU on February 15, 2007
63. ## math (opt) math 2

A flagstaff of placed at one corner of a rectangular playground 40m long and 30m wide. If the angle of elevation of the top of flag staff from the opposite corner of 30°, find height of the flagstaff. (The question is complete and I have cross checked the

asked by A GOODSTUDENT on September 10, 2016
64. ## Standing waves and resonance (physics)

A nylon string has a linear density of 7.2g/m and is under a tension of 150N. The fixed supports are 90cm apart. The string is oscillating in the standing wave pattern. Find a)speed b)wavelength c) frequency v=sqr(F/u(linear density) v=sqrt(150N/7.2g/m) =

asked by Susane on February 6, 2007
65. ## Physics (Stress & Strain)

A uniform bar 1.900m in length and having a cross sectional area of 10.500cm^2 is subject to a loading of 5550.000N. This load causes an extension of the bar length of 1.100mm. Calculate the stress and strain produced. Stress = Load/ Area Strain = Change

asked by Danny on June 23, 2013
66. ## Chemistry

Hi Please help verify my answer to the following question: 0.500g of pure phosphorous was burned in excess pure oxygen to give a product that has a mass of 1.145 g. What is the empirical formula of the resulting compound? By the use of a mass spectrometer

asked by Helpme on October 15, 2011
67. ## inglesh

In “The Raven and the First Men: The Beginnings of the Haida,” which evidence best helps the reader infer that the Haida might find it acceptable behavior to play tricks on one another? The story presents Raven’s trick against the Sky Chief in a

asked by Anonymous on September 14, 2015
68. ## rt

In “The Raven and the First Men: The Beginnings of the Haida,” which evidence best helps the reader infer that the Haida might find it acceptable behavior to play tricks on one another? The story presents Raven’s trick against the Sky Chief in a

asked by tr on October 30, 2015
69. ## English

Could you please check these sentences? 1) Your paragraph lacks an introduction as well as a conclusion. You referred to the requested topic only near the end of your paragraph. 2) You wandered off the subject focusing your attention on the description of

asked by Henry2 on November 28, 2011
70. ## Algebra

Bronze is an alloy that is made of zinc, tin, and copper in a specified proportion. Suppose an order is placed for 1000 pounds of bronze. The amount of tin in this order of bronze is two times the amount of zinc, and the amount of copper is 10 pounds more

asked by Trish on February 17, 2016
71. ## Algebra

1.What is the domain of this relation? domain range -3 3 -2 -6 -1 0,15 0 -6 1 -1 Answer- -3,-2,-1,0,1 2. Compare the quantity in Column A with the quantity in Column B Column A slope of y =3 Column B slope of x =3 Answer- The two quantities are equal 3.

asked by lizzie on August 7, 2011

1. Aaron Nance is a freshman in college who has not yet decided on his major. He is thinking about majoring in operations management and is concerned about job opportunities in this field. Which of the following statements about jobs for operations

asked by valeria on May 11, 2010
73. ## Math

If you add the denominator to both the numerator and denominator of a fraction, you get a new fraction that sometimes is larger than the original fraction. Find a fraction where the new fraction is four times as large as the original fraction after you add

asked by Liana on March 2, 2018
74. ## Chemistry

Find the equilibrium moles for the following reaction with initially 0.051 mol for Ethyl acetate, 0.260 mol for water and 0.03045 mol of acetic acid at equilibrium. I'm not sure how to get the ones at equilibrium for the left side or even how much you have

asked by Robert on August 3, 2012
75. ## biology help please :)

Two chemists measure the densities of an unknown metal sample. They both find that the sample has a density of 8.94 g/mL. Chemist A uses a chart and says that the metal must be copper since the density of copper is exactly 8.94 g/mL. Chemist B says that

76. ## math

asked by Rakshana on September 4, 2011
77. ## physics

1)An elastic material has a length of 36cm when a load of 40N is hung on it and a length of 45cm when a load of 60N is hung on it. The original length of spring is? 2)A force of 100N stretches an elastic spring to a total of 20cm. If an additional force of

asked by Anne on April 9, 2013
78. ## Accounting

O' Hara Company began operations on December 1, 2011. Presented below is selected information related to O' Hara Company at December 31, 2011. Office Equipment ₤ 40,000; Utilities Expense ₤ 6,000; Cash 14,000; Accounts Receivable 27,000; Service

asked by ummu on December 18, 2011
79. ## English

1. All of the following quotes from "The Swimming Contest" are intended to foreshadow the future conflict between the narrator and Abdul-Karim EXCEPT A. "But it's not true that we're driving the Arabs out. We are out for peace, not war."***** B.

asked by Samantha on May 12, 2017
80. ## physics

Consider a 20 cm long cylindrical glass of refractive index n=2.0. Left end of it is a concave spherical mirror with radius of curvature 12 cm for an object O inside the cylinder. The shape of the right end of the cylindrical glass is not known. If the

asked by Karaokyanus on October 16, 2011
81. ## Physics

You set out to design a car that uses the energy stored in a flywheel consisting of a uniform 103-kg cylinder of radius R that has a maximum angular speed of 450 rev/s. The flywheel must deliver an average of 1.70 MJ of energy for each kilometer of

asked by Alex on August 2, 2011
82. ## Chemistry-Dr.Bob, I need you!!!!

You can mix 100.mL of 1.0 M HCl with 100 mL of 1.0 NaOH, both at 25 degree Celcius. The temperature of your calorimeter rises by 5.98 degree C, and its heat capacity is 100 J/degre C. How much energy is released per mol of H2O formed? My answer: 6x10^6 J

asked by Sanaya on January 8, 2016
83. ## Chemistry

a 4.000grams sample of aluminum metal is added to a solution containing 5.000grams of dissolved iron chloride. the reaction results in the formation of aluminum chloride and metallic iron. when the reaction is complete, unreacted aluminum remains, and this

asked by Anonymous on March 26, 2014
84. ## 12th Calculus

a cone of height h and radius r is constructed from a flat, circular disk of radius 4 inches. by removing a sector AOC of arc length x inches. and then connecting the edges OA and OC. what are length x will produce the ocne of maximum volume, and what is

asked by elley on November 16, 2008
85. ## Physics

Mere and Ruth investigated the relationship between the applied force, F, and the extension, x of a spring. The results they obtained are shown in the table below. Force F (N) Extension x (M) 0.0 0.0 2.0 0.033 4.0 0.066 6.0 0.099 8.0 0.132 10.0 0.165 state

asked by Kate on October 17, 2007
86. ## geology

1. What fraction of the Earth is made up of each of the major compositional layers: core, mantle, and crust? 2. What cities lie the same distance from our town as the boundaries of the following layers in the Earth lie from the solid surface? a.Base of

asked by student01 on September 3, 2008
87. ## Pre Cal long problem( Can I see the work on this)

A stuffed animal dealer tells you that a fish he bought for \$8 four years ago is now worth \$200 follow the steps below to find the effective yield for this investment. Begin with the equation 8(1+r) ^4=200.Solve for (1+r) ^4 Take the common logarithm of

asked by Brittany on March 18, 2008
88. ## Maths

David took out all his coins in his piggy bank. They were made up of only fifty cents and twenty cents coin. There are 12 fifty cents coins more than twenty cents coin. The total value of fifty cents coin is 21\$ more than the total value of twenty cents

asked by Archana on November 20, 2015
89. ## Calculus

Find the exact coordinates of the centroid. y = sqrt[x], y = 0, x = 9. -------------- Is this basically 1/4 of an oval/ellipse? If so then the area would be: pi*9*3, correct? So the X coordinate would equal: 1/Area * Integral from 0 to 9 of (x*f(x))*dx

asked by COFFEE on June 17, 2007
90. ## Probability

1) A group of students were asked about their itunes collection. The probability that a student had downloaded the album by group X was 33%. The probability that a student downloaded the album by group Y was 41%. However, if you only asked the students

asked by robson on January 17, 2013
91. ## Math

I really need help please!! Karen, Gavin, Nasra, and Ali each have a deck of cards. Each student randomly draws a card from the deck. Find the probability of each event. a) each student draws a club. b) Karen draws a red card, Gavin draws a king, Nasra

asked by Cherie on April 19, 2013
92. ## Algebra

Write a linear system of equations that can be used to solve these problems. Then, solve to get your final answer. I need someone to help me go through this and point me into the correct direction. 5. Matt and Michelle are selling fruit. Customers can buy

93. ## Math

A fishing boat leaves port at 11 miles per hour at a bearing of 210 degrees for 2 hours, then turns to a bearing of 250 degrees at 8 miles per hour for 4 hours, and finally changes to a bearing of 280 degrees at 7 miles per hour for 2 hours. At this point,

asked by Shruti on November 7, 2012
94. ## statistic

A machine for filling 2-liter bottles of soft drink delivers an amount to each bottle that varies from bottle to bottle according to a normal distribution with standard deviation 0.002 liter and mean whatever amount the machine is set to deliver. If the

asked by kuhel on March 16, 2016
95. ## Physics 202

A rail gun uses electromagnetic forces to accelerate a projectile to very high velocities. The basic mechanism of acceleration is relatively simple and can be illustrated in the following example. A metal rod of mass 10.0g and electrical resistance 0.100Ω

asked by Tiffany on February 17, 2015
96. ## Calculus

Find the inverse of each relation: y = (0.5)^(x+2) and y = 3log base 2 (x-3) + 2 For the first one I got y=log base 0.5 (x+2)...but the answer in the back of the textbook says that it is not x+2, but x-2. Can someone tell me why it would end up being x-2

asked by Raj on May 6, 2007
97. ## Algebra

Joe and Theresa want to paint their living room. From past experience they know that Joe can paint the room in 6 hours and Theresa can paint it in 10 hours. How long will it take them if they work together? Mower A can cut a field in 6 hours and Mower B

asked by Chelsey on March 5, 2014
98. ## Algebra

Demand for pools. Tropical Pools sells an above ground model for p dollars each. The monthly revenue for this model is given by the formula R (p) = - 0.08p2 + 300p. Revenue is the product of the price p and the demand (quantity sold). a) Factor out the

asked by jackie on February 22, 2009
99. ## Algebra 2

Demand for pools. Tropical Pools sells an above ground model for p dollars each. The monthly revenue for this model is given by the formula R (p) = - 0.08p2 + 300p. Revenue is the product of the price p and the demand (quantity sold). a) Factor out the

asked by Nina on February 22, 2009
100. ## homework !!

My daughter did excellent in school last year (grade 1) She was reading at a grade 2 level, and loved school. Now, she says she can't read, won't read and when she tries she is getting all the small words wrong. Is she playing me or does she have a

asked by Stephanie on September 19, 2006