# Short answer find the quotient 6x^3-x^2-7x-9 ------------ 2x+3

143,010 questions, page 171
1. ## 6th grade math

We are learning probability and can you please check my answer. Question: Enrique has 3 dimes, 2 quarters, and 5 nickels in his pocket. He takes one coin from his pocket at random. What is the probability that the coin is either a dime or a nickel? My

asked by Kathy on March 22, 2009
2. ## Physics: true or false

Doubling the amplitude of a wave will double the amount of energy the wave can transfer. A. True B. False

asked by sophie on April 4, 2009
3. ## Algebra

I have this math probelm z-(3z)/(2-z)=(6)/(z-2) in my book it says to solve the equation. I have worked this problem many times and I keep comming up with different answers. When I use an online calculator to check my work it is giving me an answer of z=-3

asked by Jessica on August 11, 2010
4. ## Math

A letter carrier can deliver mail to 112 homes per hour by walking and 168 homes per hour by driving. By what percent is productivity increased by driving? Answer: 56% Is my answer correct?

asked by Ann on May 13, 2013
5. ## ADVANCED AMC8 GEOMETRY QUESTION/MATH

An equilateral triangle of side 14 centimeters is revolved about an altitude to form a cone. What is the number of cubic centimeters in the volume of the cone? Express your answer to the nearest whole number, without units. I just want the answer. Thanks!

asked by mathemagiacian on August 9, 2013
6. ## Physics

The size of Rutherford's atom is about 0.1 nm. (a) Calculate the speed of an electron that moves around a proton, based on their electrostatic attraction, if they are separated by 0.1 nm. (answer in m/s) (b) Calculate the corresponding de Broglie

asked by Eduardo on March 13, 2016
7. ## Science

Ms.Sue would you mind checking my answer? Question~ What make sit possible for plants to complete photosynthesis? _________________________________________ My Answer~ For plants to complete photosynthesis they need water,carbon dioxide and light.

asked by Anonymous on January 11, 2014
8. ## science

The chemical formula for copper sulfate pentahydrate is CuS4°H2O. Based on your observations, what do you think happens to this formula when the crystals are heated? In assuming that the answer has something to do with the h2o because when it's heated it

asked by alyssa on October 2, 2014
9. ## Physics

A 0.60 kg chunk of ice has a temperature of -28.2o C. The pressure is one atmosphere. Heat is added to the chunk until it is completely vaporized and the steam is at a temperature of 114.4o C. How much heat was needed for this transformation? Please i need

asked by Jake on February 7, 2019
10. ## statistics

A person scores 140 on an intelligence test with mean 100, a standard deviation of 15, and a reliability of 0.6. We can be 95% certain that this person's TRUE intelligence is between ____ and ____. Pick the answer that is closest to the correct answer

asked by chinwe on December 12, 2011
11. ## ADVANCED AMC8 GEOMETRY QUESTION/MATH

An equilateral triangle of side 14 centimeters is revolved about an altitude to form a cone. What is the number of cubic centimeters in the volume of the cone? Express your answer to the nearest whole number, without units. I really need help on this. I

asked by mathemagiacian on August 8, 2013
12. ## Math

1. What is the area of a regular octagon with an apothem 16 inches long and a side 19 inches long? Round the answer to the nearest inch. A) 144 in^2 B) 216 in^2 C) 1,216^2 D) 2432 in^2 Is the answer D? That's what I solved it.

asked by Tim on June 8, 2016
13. ## Chemistry

A possible set of quantum numbers for the last electron added to complete an atom of potassium in its ground state is a) n=4, l=0, ml=0, ms= -1/2 b) n=3, l=1, ml=0, ms= -1/2 c) n=4, l=1, ml=0, ms= +1/2 d) n=3, l=1, ml=1, ms= +1/2 e) n=4, l=2, ml=1, ms=

asked by Anon on April 29, 2017
14. ## PHYSICS

This is the exact problem from the paper and I got an answer of 4.2 * 10^7 and I was wondering if this was the right answer. What is the height above the earth's surface at which all synchronous satellites (regardless of mass) must be placed in orbit? The

asked by NIQUEFROMDALLAS on October 26, 2008
15. ## Math Homework

In a lottery game, a player picks six numbers from 1 to 48. If 4 of those 6 numbers match those drawn, the player wins third prize. What is the probability of winning this prize? (Give your answer as a fraction.) My Answer : 1/12972

asked by Cathy Wilson on December 17, 2016
16. ## pre-algebra

a field 480,000 m^2 is 160 m wide. What length of fencing is needed to enclose it? i thought you would just have to do A=lw 480,000= l(160) l= 3000 but the answer is wrong. the correct answer is in the six thousands. please help

asked by y912f on May 20, 2009
17. ## Mat 116 Final

Is it true when the problem says solve x= then it is one number, or fraction. The test does say below where it is looking for an answer will say type integer, or fraction. Then I get myself confused when it says 7x = -56 I figured this is dividing -56 by 7

asked by Loren on April 11, 2010
18. ## MATHS

Could you please check my answer? Daniel played a cards game in which each loss meant that he had to give the other player half the cards he had left. He lost four times, one after the other, and then had 3 cards left. How many cards did he have when he

asked by MILDRED on September 8, 2009
19. ## Math Help

Which of these nonterminating decimals can be converted into a rational number? A. 0.626226222... B. 0.020220222... C. 0.123123123... D. 0.898998999... Is the answer C? I think that C is the answer because, A,B, and D are non-repeating decimals Rational

asked by Callie on November 5, 2014
20. ## Physical Science

Hello, Can some one tell me if I came to the correct answer... Thank You For coal- 0.314 How much heat energy is required to raise the temperature of 5 kilograms of coal from 20 degrees celsius to 220 degrees celcius? my answer: 1,314,718 J

asked by Mandi on February 8, 2008
21. ## physics

A 50 V battery has an internal resistance r. 1 A 50 V r 55 Ω 66 Ω internal resistance What is the value of r? Answer in units of Ω 009 (part 2 of 2) 10.0 points Determine the magnitude of the current through the 66 Ω resistor in the upper left of the

asked by Anonymous on February 20, 2013
22. ## chemisty

12.00 liters of oxygen gas is under a pressure of 20 mm Hg. If the volume of this gas is decreased to 2.00 liters at constant temperature, what will the new pressure be? I believe this is Boyle's law and the answer should be 120 mm Hg, but according the

asked by Jo on December 4, 2012
23. ## chemistry

12.00 liters of oxygen gas is under a pressure of 20 mm Hg. If the volume of this gas is decreased to 2.00 liters at constant temperature, what will the new pressure be? I believe this is Boyle's law and the answer should be 120 mm Hg, but according the

asked by Jo on December 4, 2012
24. ## Pre-Calculus

Hi! I have three questions that I need checked over just to make sure I understand it. Thanks! :) 1.) What is the slope of the line that passes through (5, 8) and (-2, 6)? My answer: -2/7 2.) If Segment AB || Segment CD and the slope of Segment AB = 1/2,

asked by Abby on September 13, 2014
25. ## physics

A closed box is filled with dry ice at a temperature of -78.5 degree C, while the outside temperature is 21.0 degree C. The box is cubical, measuring 0.350m on a side, and the thickness of the walls is 3.00*10^-2 m. In one day, 3.10*10^6 J of heat is

asked by Mirenda on February 12, 2008
26. ## Language Check 2 Ms.Sue

Correct capitalization, punctuation, and spelling. 1. We keep a variety of emergency equipment in the trunk of our car, a first-aid kit, jumper cables, a blanket, a flashlight, and road flares. A. car a first-aid B. car: a first-aid C. car; a first-aid D.

asked by Sarah on May 7, 2014
27. ## english essay, please proof read

I have to write an essay on the chloera of haiti. For my intro, I have to write explain the subject and why it's important. I haven't written why it's important yet, but I described my subject. Can you please check to see if it's okay. Also, my essay only

asked by jenny on November 23, 2010
28. ## English

I would like someone could check my short story. Thanks One fall in the mid-1980s, Karla took some time off and got a ticket to visit relatives in Cuzco. She was fresh out of school and had begun working as an office clerk. On her return trip, she noticed

asked by Eliz on October 9, 2017
29. ## Microeconomics

Can someone please help with this question... a) Outline the various roles played by prices in a market economy. b) In what way does the presence of externalities result in price information being inaccurate? Illustrate by considering: i) the case of

asked by AliceP on October 18, 2006
30. ## Physics

A pipe that is open at both ends has a fundamental frequency of 330 Hz when the speed of sound in air is 333 m/s. What is the length of this pipe? Answer in units of cm. What is the second harmonic? What is the third harmonic? Answer in units of Hz. What

asked by AJ on October 1, 2012
31. ## General Chemistry I

A sample of a compound containing only Br and O reacts with an excess of H2 to give 6.601 g of HBr and 3.919 g of H2O. What is the empirical formula of this compound? a. BrO b. BrO2 c. Br2O d. BrO3 e. None of the above I already know the answer is (e), but

asked by Emily on December 3, 2012
32. ## chemistry

What mass in grams of potassium hydroxide is cntained in 500 mL of solution that has a pH of 11.5? For Further Reading chemistry - DrBob222, Sunday, April 6, 2008 at 12:09am pH = 11.5 pOH = 14 - 11.5 = 2.5 pOH = -log(OH^-) ] 2.5 (OH^-) = ?? KOH ==> K^+ +

asked by Sarah on April 6, 2008
33. ## College Algebra

If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with \$989.50 a month in take-home pay, then the amount you earned before the

asked by Nancy on April 18, 2011
34. ## Financial Literacy

There are no answer choices it's a crossword puzzle. Money that helps students go to college; ____________ When colleges help a student find a job it's called ______ Money that is given by businesses and private organizations to help students go to

asked by Beyblade Burst is Awesome on April 11, 2018
35. ## College Algebra

If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with \$989.50 a month in take-home pay, then the amount you earned before the

asked by Nancy on April 18, 2011
36. ## College Algebra

If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with \$989.50 a month in take-home pay, then the amount you earned before the

asked by Nancy on April 18, 2011
37. ## Math

The figure below is Circle E. Line CF is tangent at point C. Find the measure of Angle ECF. Find the measure of Angle AKB. Find the measure of Angle ACF.

asked by Meep on April 8, 2019
38. ## Geometry

*These are regular polygons* 1.Find the area of a triangle with an apothem of 8 inches. 2.Find the area of a square with a radius of 12 inches. 3.Find the area of a pentagon with a hypotenuse of 10 inches.

asked by Sholanda on May 21, 2012
39. ## Physics

Two objects are connected by a light string that passes over a frictionless pulley, and two objects are on either side of the string. There is a hanging object off the vertical side of the incline weighing 10.0 kg. The 3.50 kg object lies on a smooth

asked by JT on October 19, 2011
40. ## physics

In the figure below, the fresh water behind a reservoir dam has depth D = 13 m. A horizontal pipe 6.0 cm in diameter passes through the dam at depth d = 6.0 m. A plug secures the pipe opening. (a) Find the magnitude of the frictional force between plug and

asked by rock on January 28, 2011
41. ## Fermats Little Theorem

Good morning, Just working through an example but ive gotten stuck and need some help. So find the least residue of 8^123 Mod 61 So 8^60 = 1 (mod 61) 8^120 = (8^60)^2 = 1^2 = 1 (mod 61) 123 = 2*60+3 So 8^2*60+3 = (8^60)^2 x 8^3 = 1^2 x 8^3 = 1 x 512 = 512

asked by Mat on October 15, 2016
42. ## Trigonometry

Thank you for the respond!! I appreciate it. But it says on my paper 360 rev/min = 360 (2pi/60) rad/s = 12pi rad/s and so D= 2r = 2(s/theta) = 2(40/12pi) ft = 20/3pi ft = 2.12 ft should be the answer :( I have 2 more if that's alright. A point on the rim

asked by Geee on November 10, 2017
43. ## physics

A dog searching for a bone walks 2.87 m south, then runs 22.5 m at an angle 30.5 north of east, and finally walks 5.91 m west. Find the direction of the dog's resultant displacement vector. Give your answer as an angle in degrees, with the angle measured

asked by Jenna on September 6, 2007
44. ## Calculus

"The line x+y = 0 is tangent to the graph of y = F(x). Find F(x) if F'(x) = x". I know how to find the antiderivative of F'(x), but I don't know how to use the tangent line to find my constant.

asked by Stuck on April 3, 2010
45. ## stats

you are given the probabilities listed below P(A)= 0.25, P(B) = 0.30, P(C)=0.55, P(A&C) = 0.05, P(B&C)=0, P(B/A)=0.48. A) ARE A AND B INDEPENDENT? B) FIND P(A&B) C) FIND P(A OR B) D) FIND P(A/B) E) ARE B AND C MUTUALLY EXCLUSIVE EVENTS? F) ARE B AND C

asked by Anonymous on March 6, 2011
46. ## Math

How do you find critical points in a function? For example, find the critical points in f(x)=12+2x^2-x^4 please help me somebody find the derivative and set it equal to zero

asked by Math on February 21, 2007
47. ## Biology

You are given the following protein sequence: NH2-Met-Trp-Trp-Met-Trp-Met-COOH What was the sequence of the mRNA? You must write your answer 5' to 3' direction, starting with the first nucleotide of the mRNA and ending with the last nucleotide of the mRNA.

asked by Dean on November 2, 2010
48. ## statistics

Use Bayes' theorem to solve this problem. A storeowner purchases stereos from two companies. From Company A, 150 stereos are purchased and 7% are found to be defective. From Company B, 900 stereos are purchased and 9% are found to be defective. Given that

asked by Sam on February 26, 2008
49. ## math-ms sue please

Ms Sue thank you for the help with my other word problem can you check this one for me? Write a word problem and find the solution to the equation. 1/2-2/3 THe answer is -1/6 and the word problem I created is: Janet put 6 suckers on a table. 3 suckers were

asked by m on October 27, 2010
50. ## Technology

Can you pleas check my answers? 1. Which of the following is a list of input devices? A. printer, mouse, speakers (answer) B. RAM, monitor, printer C. microphone, mouse, scanner D. CPU, monitor operation system 2. Which type of software coordinates the

asked by O~o on January 11, 2019
51. ## math

Given the function f(x)=x^4−6x^2 a.) Find all values of x where local extrema points occur b.)find all values of x where inflection points occur c.) find all local extrema of f(x) d.) find all global extrema of f(x) over the closed interval [-2,3]

asked by Ryan on November 26, 2012
52. ## algebra,math

can someone correct these. and help me DIrections:Factor (3) 4x^2-4x-15 My solving: 4*x*x-4*x-15 (the star means multiply my final answer: x^3-15 (the ^ means for exponent) (4) 5x^2-26x+5 my solving: 5*x*x-26*x+5 my final answer: x^3-16 I don't understand

asked by jasmine20 on December 12, 2006
53. ## health

explain from a physiological standpont how eating disorders may lead to health promblems? provide at least three examples to support your answer? I have the first half of the question figured out the one that asks for three examples to support my answer is

asked by a on November 9, 2010
54. ## 7th Scholastic Math

I don't know how to answer this question, so if you could provide me an explanation or your answer that would be much appreciated by me. Thank you tutors. If I were to conduct a study on an animal, what type data would I gather best displayed as a circle

asked by anon on December 2, 2015
55. ## Chemistry

. . S H H B: What kind of three-dimensional geometry would this molecule have? C: Would this molecule be polar or nonpolar? Explain your answer. - B: “Triangular Planar”. C: I've tried to answer this question. I know a polar bond is when the

asked by T. White on May 13, 2009
56. ## math

If the answer is 1-2/3m what is the question> How can you solve equations like these? 9r + 7 = 4r - 8 Need to get the r on one side. 1st- subtract 4r from the right side of the = sign. What you do to one side do to the other. 9r-4r+7=4r-4r-8. 5r+7=-8 2nd-

asked by jenny on November 14, 2006
57. ## Physics

A glacier advances at 7 × 10−6 cm/s. How far will it move in 3.7 y? Answer in units of cm. I have calculated that there are 31,449,600 seconds in a year. I multiplied 31,449,600 by 7 × 10−6 and got 2201.472. Then I multiplied that by 3.7 and got

asked by Lance on October 4, 2016
58. ## Law and Ethics in Med

please check my answer thanks :) Dr Bob is sued for malpractice. when called to give testimony at trial. he will .... 1. be barred from revealing medical information about the patient. 2. be allowed to testify about the pt's care 3. allowed to testify, but

asked by Anonymous on November 17, 2007
59. ## Math

please check my answer thanks :) Juan bought a home with an adjustable-rate mortgage. The margin on the loan is 2.7% and the rate cap is 7.2% over the life of the loan. If the current index rate is 4.3%, what isthe initial rate of the ARM ? A. 7% B 9.9% C

asked by Grace on November 29, 2007
60. ## Math-statistics

The annual sales, in millions of dollars, for 28 toy department stores is listed. 38 35 43 27 24 40 38 21 34 27 35 36 24 33 27 33 44 45 23 33 33 24 33 27 32 35 29 31 A)Calculate the mean,(u), and standard deviationof the data. Answer to the nearest tenth.

asked by Jodine on December 12, 2008
61. ## Physics

A pendulum swings back and forth up to a maximum height of 1.52 m. Neglecting friction, what is the speed of the pendulum at the lowest position. a) 2.7 m/s b) 3.9 m/s c) 5.5 m/s d) 30. m/s I thought the answer would be 0 m/s because it wouldn't move at

asked by Megan on May 11, 2015
62. ## Math

There are 7 girls on a bus. Each girl is carrying 7 backpacks. In each backpack, there are 7 big cats. For each big cat, there is 7 little cats. How many legs are there? My answer was 10,990 legs. My teacher said it wasn't right, although it was very

asked by Riley on January 5, 2012
63. ## math,algebra

can someone correct this for me: (1) Kit got 74/80 on an exam, meaning that she earned 74 points out of 80 possible. Write the decimal equivalent of this fraction. My answer: .925 But my question is do i have to round up or i should just leave it as is.

asked by jasmine20 on December 17, 2006
64. ## US History I

Could someone Please Answer this, I'm supposed to write a paragraph on this : Defend the statement: The United States was an imperialist nation at the beginning of the 20th Century. Could someone answer this too and not post a website? - when was the

asked by Amy~ on May 31, 2010
65. ## Physics

A fire hose 3.8 cm in diameter is capable of spraying water at a velocity of 20 m/s. For a continuous horizontal flow of water, what horizontal force should a fireman exert on the hose to keep it stationary? I know the answer is 454 N but how does one

asked by James on June 11, 2012
66. ## statistics

A test consists of 5 multiple questions each of which 3 answers are given, only 1 of which is correct.for each correct answer a candidate gets 2 marks but loses 1 mark for each incorrect answer.draw up table to show all possible marks and a probability

asked by faith on September 22, 2016
67. ## Chemistry

Assume that some of the magnesium nitride is not completely converted to magnesium hydroxide and subsequently to magnesium oxide. Will your empirical formula be too high in magnesium or too high in oxygen? Please show any calculations you used to determine

asked by GC on February 14, 2014
68. ## physics

A merry-go-round starts from rest and accelerates uniformly over 29.0 s to a final angular velocity of 5.35 rev/min. (a) Find the maximum linear speed of a person sitting on the merry-go-round 4.50 m from the center. (b) Find the person's maximum radial

asked by Anonymous on March 1, 2011
69. ## physics

A merry-go-round starts from rest and accelerates uniformly over 26.0 s to a final angular velocity of 5.50 rev/min. (a) Find the maximum linear speed of a person sitting on the merry-go-round 4.25 m from the center. (b) Find the person's maximum radial

asked by John on March 14, 2012
70. ## Physics

A mover has to move a heavy sofa of mass 146 kg to the second floor of the house. He uses a rope to pull the sofa up a ramp from the first to the second floor. As he pulls the sofa he makes sure that the rope is parallel to the surface of the ramp which is

asked by Anna on September 27, 2015
71. ## Biology (Answer ASAP Please)

ok i need help with this like ASAP. Please math the following terms to their corresponding cell structure Cytoplasm [ K ] Flagella [ H ] Smooth Endoplasmic Reticulum [ ] Cilia [ ] Mitochondria [ ] Golgie Apparatus [ ] Chromosones/Genes [ N ] Rough

asked by Andrew on April 18, 2018
72. ## French #2

I have to make a short skit in French, related to food. Here it is: A:Je veux faire le diner. B:Oui, je veux faire le diner aussi. A:Je veux faire carotte et tomate soupe. B:Je veux faire fruit salade. A:Passez las tomates s'il vous plait. B:Voici A:Merci

asked by Larry on May 8, 2009
73. ## Trigonometry

Write the trigonometric expression as an algebraic expression. 1.) SIN(ARCSIN X+ARCCOS X) ANSWER: 1 2.) SIN(ARCTAN 2X-ARCCOS X) ANSWER: 2x²-SquareRoot of 1-x²/Square Root of 4x²+1.

asked by AwesomeGuy on February 21, 2013
74. ## Question

Okay, I'm doing a project on careers and one of the questions I have to answer is: Career Description: "What do people in this career do?" So, what does that question mean? What does it want me to include in my answer? I wrote down what the career is, what

asked by Larry on December 12, 2008
75. ## PHYSICS

Suppose that at least 13.0 eV is needed to free an electron from a particular element, i.e., to ionize the atom. What is the lowest frequency photon which can accomplish this? And, what is the corresponding wavelength for that photon? Give frequency for

asked by Julie on August 10, 2015
76. ## Maths

Ranee keeps £360 in a savings account for a year. At the end of the year she gets £13.50 in interest.Work out the interest rate on the account.Give your answer as a percentage. What's the answer guys and girls

asked by Stephen on April 27, 2015
77. ## Easy Trig question Help me plz

can someone tell me the steps of answering this problem Sin(B+15)=Cos(2B+30) the answer is B=15 but im not sure how to get that answer, i thought u set B+15=2B+30 but i end up getting B= -15 when i do that. You should know the basic relation between sine

asked by John on September 14, 2006
78. ## Math

A greyhound can run as fast as 39.35mph per hour without calculating,would about 12,14 ,or 16 be reasonable answer for the number of miles a greyhound could run at this rate in 0.4 hour. My answer is about 16 because 60 min.divided by 0.4 is about 15. Am I

asked by Americal on September 27, 2012
79. ## word problem

james has a metal frame with an 8.32 inch perimeter. If the sides are 0.04 inches thick, what is the perimeter of the inside of the frame? 0.04 x 4 + .16 8.32 - .16 = 8.16 But the book gives an answer of 8. I am not sure what I am doing wrong. Can any one

asked by tish on April 20, 2011
80. ## Math Question

Hello! I need help with this question. I have an answer but I wanted to make sure it's correct. Thanks! Question: Which of the following is NOT a trigonometric identity? Answers Given: A.) 1-cos^2x=sin^2x B.) sin^2x+1=cos^2x C.) 1+cot^2x=csc^2x D.)

asked by Lily on February 9, 2015
81. ## physices

How would the total (round trip) time in windy weather compare with the total time in calm weather? Please answer this in words, not equations, briefly explaining how you obtained your answer.

asked by bila on February 28, 2011
82. ## physics

Please help! I want to make sure my answer is correct. Q:A thundercloud has an electric charge of 43.2 C near the top of the cloud and -38.7 near the bottom of the cloud. The magnitude of the electric force between these two charges is 3.95 x 10^6 N. What

asked by Ashley on May 28, 2015
83. ## Physics

A carefully designed experiment can measure the gravitational force between masses of 6 kg. Given that the density of iron is 7860 kg/m3, what is the gravitational force between two 6.00-kg iron spheres that are touching? The answer is 1.87e-07 N. How do I

asked by Amy on June 27, 2012
84. ## Math

Three of every seven sales transactions at Dollar Discount are on credit cards. What percent of the transactions are NOT credit card sales? (Round percentages to the nearest tenth.) Answer: 57.1% Is this answer correct?

asked by Sue on May 13, 2013
85. ## Math

Is my answer correct? The population of a city is 160,000 and is increasing at a rate of 1.5% each year. Approximately when will the population reach 320,000? My answer is approximately 46 years. Is that right? Thx

asked by Kellie on January 16, 2010
86. ## Elementary Statistics

determine whether the given is a statistics or parameter. 1.) There are 50 capitol states in the US. Answer: Parameter 2.) Among the flights included in the sample of flights in Data set 15 in Appendix B, 21% arrived late. Answer: Statistics

asked by Mar on May 26, 2015
87. ## Physics question

An object 29.0 mm high is 27.0 cm away from a concave spherical mirror with a radius of curvature of 28.0 cm. How do i get these answers? a)How far from the mirror is the image? (absolute distance) answer 29.1cm b)What is the absolute size of the image?

asked by steve on May 18, 2010
88. ## Physics

Two charged particles, q1 = −2.50×10−3 C and q2 = +3.700e-3 C, are separated by a distance of 5.00 cm. (a) What is the electric potential energy of this configuration? (b) What is the electric potential at a point midway between the particles? I have

asked by Sheree on May 31, 2012
89. ## geography

A country in southeast Asia between Burma and Laos used to be called Siam. What is it called today? My answer is Thailand. Is this right? How many countries does the Antarctic Circle pass through? My answer is zero. It does not pass through any countries.

asked by Reed on October 23, 2011
90. ## Physics

When a mass is attached to a vertical spring, the spring is stretched a distance d. The mass is then pulled down from this position and released. It undergoes 53 oscillations in 30.6 s. What was the distance d? The answer is supposed to be 8.28 cm. How can

asked by James on July 7, 2012
91. ## math

An efficiency expert has calculated that about 9.5% of the articles produced in a manufacturing plant are defective. This is equivalent to expressing the defective articles as a. 9 out of 15 b. 9 out of 50 c. 10 out of 95 d. 19 out of 100 e. 19 out of 200

asked by thomas on April 9, 2014
92. ## Physics

What is the probability density at the fifth carbon atom if the electron is in the n=2 energy level? I have the formula as follows: Probability density = p5= (2/1.65) sin^2 (4x2pi/11) I know the final answer is 0.69 nm -1. However, I do not know how to

asked by Student on October 28, 2010
93. ## Calculus

I've been trying to solve the improper integral of ln(x)/sqrt(x) dx as a=1 and b=infinity I am required to solve for this question and according to my answer, it is divergent. However, my answer is infinity-4. Is it acceptable to say that infinity minus a

asked by Confused on February 28, 2013
94. ## chemistry

Fuel oil and bitumen is 38% in demand Petrol and Naptha is 27% in demand Diesel is 23% in demand. A question asks: Why are these fractions in demand? I am not sure how to answer this questions and please advise me to how to answer this question. Thanks in

asked by Ruth on March 10, 2012
95. ## mit

Two circular pucks, each of mass M and radius R, slide toward each other and are about to collide on frictionless ice. The pucks have glue on their edges and when they collide the pucks will stick together. Before the collision, the rightward-travelling

asked by juanpro on March 23, 2016
96. ## math

Develop a unit of learning at the end of which learners should be able to: reduce any angle in the first quadrant of a Cartesian plane to a difference of 90 and an acute angle. I have tried it as follows: 1. write down any three acute angles. 2. draw the

asked by william on February 18, 2016
97. ## Calculus

The base of a triangle is shrinking at a rate of 1 cm/min and the height of the triangle is increasing at a rate of 6 cm/min. Find the rate (in cm2/min) at which the area of the triangle changes when the height is 38 cm and the base is 36 cm. I just want

asked by Meghan on April 14, 2018
98. ## CHEM**

I just have 2 other questions that I just want to make sure on: Place the following elements in order of decreasing atomic size: tellurium, bromine, argon, cesium, strontium, and selenium. (Te, Br, Ar, Cs, Sr, Se) ~~(or...the correct ranking cannot be

asked by K on November 13, 2007
99. ## finding numbers

The sum of two positive numbers is 20. Find the numbers if the sum of their squares is as large as possible; as small as possible. What does it mean? This is from applications of derivatives. How do I solve this. Two numbers, x, and 20-x Sumsquares= x^2 +

asked by Jen on November 18, 2006
100. ## math

You randomly choose 16 unfurnished one-bedroom apartments from a large number of advertisements in your local newspaper. You calculate that their mean monthly rent is \$613 and their standard deviation is \$96. Does this SRS give good reason to believe that

asked by arshi on November 19, 2013