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

143,010 questions, page 515-
## physics

A 608g sample of water at 77C is mixed w/429g of water at 23C. What is the final temp of the mixture? Assume no heat liss to the surroundings. Answer in units of C

*asked by Anonymous on December 17, 2012* -
## statistic

The data below represent the ages of female actors at the time of winning an Oscar (1956 - 1996). 41 27 34 34 41 30 61 42 49 27 31 60 34 35 74 21 29 39 39 37 61 26 31 33 41 33 38 30 26 37 41 49 26 35 28 24 35 42 33 38 81 45 What is the frequency for the

*asked by bria on July 12, 2012* -
## world history

the Liao empire did all of the following exept a. create a chinese style dynasty b. conquer southern china c. adopt chinese writing d. use the civil service system my answer D

*asked by jessy on July 20, 2015* -
## Physics

An automobile traveling along a straight road increases its speed from 67 ft/s to 85 ft/s in 180 ft. If the acceleration is constant, how much time elapses while the auto moves the 180 ft? Answer in units of s. Can you tell me the steps in doing this?

*asked by An on October 4, 2016* -
## Ed tech

Using a graphic organizer in the prewriting process can do all of the following except. Organize the writers thoughts. Help narrow the writer's topic. Research a writer's story. (MY ANSWER) Help make the writing more detailed.

*asked by LOVE on August 11, 2016* -
## Math

Is rotating the point L(4,4) 90° ABOUT THE ORIGIN THE SAME AS REFLECTING THE POINT OVER THE X-AXIS? EXPLAIN. I get that the rule is counter clockwise and you rotate x and y and then change the value of the 1st sign.. becomes -y,x but i don't know how to

*asked by Ann on December 28, 2014* -
## science

Are the following data sets on chemical changes consistent with the law of conservation of mass? (a) A 15.0 g sample of sodium completely reacts with 19.6 g of chlorine to form 34.6 g of sodium chloride. the answer is yes, because 15 and 19.6 add up to

*asked by reid on September 9, 2010* -
## English

Choose the answer that best matches the word bravado. Sometimes small dogs show more bravado than the larger breeds; they may need to in order to be noticed. a. boldness*** b. fear c. perseverance d. stamina

*asked by Kaai97 on January 19, 2016* -
## physics

A bat flying at 5.0 m/s emits a chirp at 35 kHz. If this sound pulse is reflected by a wall, what is the frequency of the echo received by the bat? I keep getting the wrong answer, don't understand.

*asked by Elisa on August 4, 2008* -
## Physics

A 608g sample of water at 77C is mixed w/429g of water at 23C. What is the final temp of the mixture? Assume no heat liss to the surroundings. Answer in units of C

*asked by Anonymous on December 17, 2012* -
## Amercain history

Due to the costs of production, the major news source that would NOT emerge as a major entity until the creation of cable television would be: Answer ABC. FOX. CBS. NBC.

*asked by Tim on September 7, 2010* -
## math

Suppose X is a random variable with mean μ and standard deviation σ. If a large number of trials is observed, at least what percentage of these values is expected to lie between μ − 3σ and μ + 3σ? (Round your answer to the nearest whole number.)

*asked by titi on July 2, 2017* -
## Statistics

I am so lost on this statistics question would someone help me figure out how to answer it? A random variable X is normally distributed with the mean and standard deviation 1.6. What is the proportion of the data values that lies within 1.6 standard

*asked by Layney on November 27, 2012* -
## World History

I need the differences between the 21st century and the 19th century for the following areas: education, legal rights, and family. You don't have to give me the answer i just need a website I want to be able to get it on my own I am not good at researching

*asked by Anonymous on January 22, 2016* -
## english

Which of the following is not characteristic of the suras in the Koran? a. They are lyrical passages. b. They are written in rhymed Arabic verse. c. They emphasize the mercy of Allah. d. They emphasize the richness of life of earth. i think the answer

*asked by bindiya farswani on July 19, 2009* -
## Physics

Hi, I need to know how much ground water presuure would be required to lift a 1.200m diameter plastic tank weighing 650kg out of the ground please, Please supply the answer in Kpa or psi Cheers

*asked by Spencer on July 27, 2011* -
## Chemistry

What is the total energy transfer(in KJ) when 10.00 pounds of water vapor at 110 degrees C becomes ice at 253K? Assume that the specific gravity of water = 1.00. The answer I got was around 12,000 KJ. Is this correct?

*asked by Tyler on April 30, 2011* -
## English

If you have read "Rose Pogonias" by Robert Frost please check my answer. Which type of figurative language language is found in lines 6 and 7? A) symbol B) metaphor C) personification

*asked by Sliverstream on March 8, 2019* -
## calculus

answer the following for the given quadratic function f(x)=x^2-2x+1 a. Does the graph of f open up or down? b. What is the vertex of (h,k) of f? c. What is the axis of symmetry? D. What is the intercepts? E. What is the domain? F. What is the range? G. On

*asked by Sammy-please help!!!! on December 18, 2012* -
## Calculus

Suppose that f (x) is a function such that the relationship given below is true. f (3 + h) - f (3) = 9h^2 + 8h (a) What is f '(3)? (b) What is the slope of the secant line through (3, f (3)) and (7, f (7))? Please do not use shortcuts(from future chapters)

*asked by catherine on September 14, 2010* -
## Language art

Consider the main characters from " The Stolen Day and the night the bed fell in a paragraph discuss which character learns the most and which one learns the least. PLZ ANSWER ASAP and yes I have read both stories

*asked by Courtney on October 6, 2016* -
## Math

For an art exhibit, Craig has to choose 3 ceramic mugs out of the 7 that he made over the summer. In how many ways can he arrange these 3 mugs in a row? I'm not looking for the answer, but only an explanation for why this is a permutation problem and not a

*asked by Anonymous on February 10, 2015* -
## English

Choose the letter of the word or phrase that best matches the word in italics Tsunamis are less (prevalent) in the Indian Ocean than in the Pacific. A. Mild B. Harmful C. Severe D. Common *My Answer*

*asked by Lolli on October 4, 2018* -
## Calculus

Use the Fundamental Theorem to evaluate the integral from 0 to 3 of the quantity x cubed minus 6 times x, dx. (Your answer must include the antiderivative.) Use a graph of the function to explain the geometric meaning of the value of the integral.

*asked by nan on March 10, 2016* -
## Grammar

The patient was admitted to the floor for abdominal pain and diarrhea, initial diagnosis was a possible small-bowel obstruction. A) complete sentence B) fragment C) run-on Seems like C would be the best answer as a run-on

*asked by Marie on October 9, 2012* -
## algebra 1 please help

use the formula for the area of a trapezoid A=h(b1+b2) where A is area , b1 and b2 are (-----) 2 the lenght of the bases and h is the height, to answer the qustion. How many square feet of grass are there on a trapezoidal field with a heigth of 75 ft and

*asked by 9th grader on August 22, 2016* -
## Marketing

Wanted to know how to answer the following questions related to a small copier company. See below. Development: What is the training medium? Training mediums include internal, external, contracted, or outsourced.

*asked by Tee on July 20, 2011* -
## physics

Someone in a car going past you at the speed of 43 m/s drops a small rock from a height of 1.6 m. How far from the point of the drop will the rock hit the ground? The acceleration due to gravity is 9.8 m/s 2 . Answer in units of m

*asked by ra on December 14, 2012* -
## Social studies

Goverments must provide soe goods and services because? Producers cannot limit who uses them. Only some people wish to use them. Private companies are unable to make them. (MY ANSWER) Consumers distrust private suppliers of them.

*asked by LOVE on August 23, 2016* -
## Intermediate Algebra

The length of the side of a rectangle desk is given by 2x-6y cm. The lenght of the front is given by 2x+6y cm. What is an algebraic expression for the area of the top of the rectangular desk? Include correct units as part of your answer.

*asked by ladybug on June 5, 2012* -
## Physics

The 3.1 , 38-cm-diameter disk in the figure is spinning at 310 . How much friction force must the brake apply to the rim to bring the disk to a halt in 2.6 ? Express your answer using two significant figures.

*asked by Amy on November 13, 2012* -
## Math

Can someone help me with this problem? Evaluate the numerical expression on a calculator. Round the answer to the nearest whole number. ( 34*15) (364) -------- * ---- (5) (52) Here is what I figured: (510) (364) -------- * ----- (5) (52) = (185640) -------

*asked by B.B. on June 20, 2009* -
## Physics

A penny is dropped from the observation deck of the Empire State building (370 m above ground). With what velocity does it strike the ground? Ignore air resistance. answer is in____ m/s.

*asked by Candy on February 7, 2010* -
## chemistry

Marla drives her car to school each day. If it takes her 12 minutes to drive one way, how many hours a week does Marla spend driving? (Express the answer in decimal form.)

*asked by amber on May 30, 2012* -
## Chemistry

Baking soda consists mostly of a single chemical. Look up what it is, its molecular weight and density, and determine the number of moles used in this recipe. Give your answer in moles but do not include the units.

*asked by Diana Merritt on June 20, 2015* -
## geometry

a lader is leaning against a jouse and is forming a 60 degree angle with the ground. if the top of the ladder is 24 feet off of the gound, how long is the ladder? leave your answer in exact form.

*asked by hannah on November 6, 2008* -
## Physics

Consider the motion of a projectile. It isfired at t = 0. Its initial speed is 36 m/s and its initial projection angle is 55◦ from the horizontal. The acceleration of gravity is 9.8 m/s2 . y x What is the maximum height, h, of its tra jectory? Answer in

*asked by Bobby on December 9, 2010* -
## Physics

Why do the passengers in high-altitude jet planes feel the sensation of weight while passengers in the International Space Station do not? Please help; need an original answer no Google search. Thank you in advance...

*asked by Chris on April 25, 2013* -
## physics

A car travels along a straight stretch of road. It proceeds for 14 mi at 50 mi/h, then 28.3 mi at 48 mi/h, and finally 37.4 mi at 38.3 mi/h. What is the car’s average velocity during the entire trip? Answer in units of mi/h Can u show me the steps to

*asked by anon on September 26, 2011* -
## math

you want to draw an enlargement of a design that is printed on a card that is 4 in. 5 in. you will be drawing this on a piece of paper that is 8 1/2 in. by 11 in. what are the dimensions of the largest complete enlargement you can make??? plz include

*asked by asha on December 9, 2008* -
## Scocial Studies

most brazilians are descendants of which combination of ancestors? A.Mayan,mexican, and mestizo B.Native American, african and european...(my answer B) C.portuguese, spanish, and incan D.spanish, ladino

*asked by Someone on May 26, 2016* -
## CHEM

Write an equation for the acid–base reaction between ammonium ion and sulfate ion. a. why does the equillibrium favor the reactants? This was my answer NH3+H2O-->

*asked by john on January 18, 2012* -
## Physics (Electric Potential)

Good afternoon! I'm stumped with this question here. Q: An electron starts from rest 32.5 cm from a fixed point charge with Q=-0.125μC. How fast will the electron be moving when it is very far away? I got an answer of 5.54 * 10^-16 J, but apparently it is

*asked by Anonymous on March 16, 2018* -
## English

What can you infer about the speaker in "Rose Pogonias"? Support your answer with evidence by citing examples of three words or phrases from the poem. explain why each word or phrase helps you know more about the speaker.

*asked by DJ Marshmello on April 10, 2019* -
## ap chemistry

What mass of solid sodium formate (of MW 68.01)must be added to 125 mL of 0.48 mol/L formic acid (HCOOH) to make a buffer solution having a pH of 4.07? Ka = 0.00018 for HCOOH. Answer in units of g

*asked by gabriella on February 4, 2014* -
## science

A golfer tees off and hits a golf ball at a speed of 31 m/s and at an angle of 35 degrees. How far did the ball travel before hitting the ground? Round the answer to the nearest tenth of a meter.

*asked by Miguel Hernandez on October 9, 2012* -
## algebra 1

Use the following statement to answer parts a) and b). One hundred raffle tickets are sold for $3 each. One prize is to be awarded. Raul purchases one ticket. a). Determine his expected value. b). The fair price of a ticket is?

*asked by angie on May 25, 2016* -
## history

6. Following on the successful activism of Cesar Chavez, Mexican American youths began to refer to themselves as A. Los Barrios. [B. Chicanos.] C. Los Hombres. D. Mexicans. is my answer correct

*asked by jake on December 12, 2011* -
## SCIENCE

i am doing a project on pneumonia. i need to answer the following questions in a proper sentence. 1. does pneumonia affect both men and women? 2. what are the chances for survival. 3. what is the % of population affected? 4. is the disease on the increase

*asked by Baily on October 31, 2011* -
## Biology

In a population of Mendel's garden peas, the frequency of green-flowered plants (genotype aa) is 49%. The population is in Hardy-Weinberg equilibrium. What are the frequencies of the AA and Aa genotypes? I got 9% AA, 42% Aa as my answer, is this correct?

*asked by Fay on October 3, 2016* -
## Stats in need of help

Assume that you entered a drawing to win one of 35 movie tickets. If only 650 people enter the drawing, determine the probability of winning (round your answer to three decimal places)

*asked by Joe on July 6, 2017* -
## calculus

One side of a right triangle is known to be 45 cm long and the opposite angle is measured as 30°, with a possible error of 1°. (a) Use differentials to estimate the error in computing the length of the hypotenuse. (Round the answer to two decimal

*asked by deep on November 11, 2009* -
## Algebra 1

Simplify the difference (-7p^4+4p^3+6)-(3p^3-5p+3) I removed the parenthesis and changed the addition and subtraction signs to their opposites on the second set; -7p^4 + 4p^3 + 6 - 3p^3 + 5p - 3. When I combined the like terms, I was able to simplify the

*asked by Sami on October 26, 2016* -
## math

What problems might you encounter when calculating the equation of a line whose graph is actually parallel to one of the axes? The answer states, "Horizontal lines have any y-value and vertical lines have any x-value." Could anyone explain this, I'm not

*asked by anonymous on February 16, 2018* -
## check geo

in the 1800s ___________ opened up the western united states to immagration and buisness. A. The transcontinental railroad B. The underground railroad C.Route 66 D.Cattle farming .The answer I chose was B .

*asked by henry on August 12, 2009* -
## Tax question

The same filing requirements that apply to individuals determine if a final return must be filed for a person who dies during the year. True or false My answer would be True is it right. If I'm wrong can u explain.

*asked by Lil on October 24, 2012* -
## Math

Three neighbors are sharing a rectangular strip of land for a garden.They divide the landinto equal peices. What fraction of the land does each person get if they share it equally? Write the answer in more than one way.

*asked by Donielle on November 28, 2011* -
## Early American Literature

I had to read an excerpt from Ralph Waldo Emerson's "Self-Reliance". My assignment is to answer uestions about it. The uestion I am stumped on is: How important is Emerson's use of the adjective "foolish" in his discussion of consistency?

*asked by Whitney on February 22, 2012* -
## English

Which poetic line contains both paradox and consonance? A. One summer day, all day I drove it hard B. How long it might last, how young it might be C. Ay, look, and he'll smile thy gloom away D. At least to know the worst is I'm leaning towards c. being

*asked by Juan on June 8, 2015* -
## chemistry

Calculate the enthalpy of atomization per unit volume for Rb. Express your answer in kJ/m3. Determine the volume (in mL) occupied at room temperature by 3.5e22 mercury (Hg) atoms in the liquid state.

*asked by schoolgirl on March 23, 2013* -
## Entrepreneurship

1. An LLC offers personal liability protection while also keeping the advantage of _______ A) double taxation B) automatic trademarking C) hierarchical organization D) pass-through taxation is the answer D?

*asked by Tim on June 14, 2016* -
## physics

A 4 cm candle sits 15 cm in front of a converging lens with a focal length of 6.0 cm. Draw a ray diagram showing the image used and determine the image distance and magnification. Please help me answer!

*asked by sarah on March 3, 2015* -
## Physiology

Suppose you were to grind up and homogenate a pancreas. Do you think it would be possible to isolate insulin from this hemogenate? ( Hint: remember that the pancreas is also an exocrine gland, producing pancreatic juice) Explain your answer

*asked by Amy on May 18, 2011* -
## algebra

A car leaves @ 10am going 60 mph, another leaves opposite direction going 50mph how long till they are 330 miles apart. I know the answer is 1pm but I need to know a variable and how to create the problem

*asked by fred on September 16, 2009* -
## Art

For which purposes was this piece of art most likely created? Aesthetics and expression. Entertainment and historical. Utilitarian and aesthetics. (MY ANSWER) Picture. Net pattern bowl by unknown artist.

*asked by LOVE on August 11, 2016* -
## math

One side of a right triangle is known to be 45 cm long and the opposite angle is measured as 30°, with a possible error of ±1°. (a) Use differentials to estimate the error in computing the length of the hypotenuse. (Round your answer to two decimal

*asked by Ansley on October 13, 2012* -
## Microecon

Which of the following industries would you classify as an oligopoly? Which would you classify as monopolistically competitive? Explain your answer. If you are not sure, what information do you need to know to decide? a. Athletic shoes b. Restaurants c.

*asked by MICHELLE on February 20, 2010* -
## Physical science

Choose the correct answer to the following question 1.The following pairs of ions results in a precipitate being formed... (a)calcium and carbonate (b)sodium and sulphate (c)potassium and iodide (d)sodium and nitrate

*asked by Lesedi on September 10, 2014* -
## Literature

3. A haiku allows readers to a. share a lifetime of experiences b. share a special moment c. focus on surface details d. understand Japanese history I've asked this one before but I forgot the answer to it... Thanks -MC

*asked by mysterychicken on November 23, 2009* -
## Calculus - Second Order Differential Equations

Solve the boundary-value problem. y''+5y'-6y=0, y(0)=0, y(2)=1 r^2+5r-6=0, r1=1, r2=-6 y=c1*e^x + c2*e^-6x y(x)=c1*e^x+c2*e^-6x y'(x)=c1*e^x-6*c2*e^-6x y(0)=c1+c2=0, c1=-c2 y(2)=c1*e^2+c2*e^(-12)=1 -c2*e^2-6c2*e^(-12)=1 -c2(e^2-6*e^-12)=1

*asked by COFFEE on July 9, 2007* -
## PLEASE HELP WITH MATH

PLEASE HELP WITH MATH ANY HELP OR ANSWER IS APPRECIATED! 1. If the hands on a round clock moved counter-clockwise, to what number would the minute hand point 20 minutes before the hour hand pointed to the 3?

*asked by Menepsimo on August 12, 2014* -
## Activity Question

Was conflict over red river settlement inevitable? Yeah because I am sure Macdonnel would have still issued his Pemmican Proclamation no matter what. This question is like a trick question. How do I reword it, and my answer is not good. please help

*asked by Emma on May 25, 2011* -
## Physics

A ball is thrown vertically upward with a speed of 25.4 m/s from a height of 2.1 m. (Remember gravity is a=9.8m/s^2) How long does the ball take to hit the ground after it reaches its highest point? Answer in units of s.

*asked by Jennifer on September 15, 2010* -
## college math

Calculate the perimeter of the Hoyt-Clagwell auto parts manufacturing plant. The plant is in the shape of a rectangle that measures 49.6 ft long by 37.7 ft wide. Would the formula be P= (2x 49.6 + 2 x 37.7) the answer 174.6 ft

*asked by Lourane on June 1, 2012* -
## fluid mechanics problems

With the distance: 0.610 m, nutrient solution (ρ = 1040 kg/m3) can just barely enter the blood in the vein. What is the gauge pressure of the venous blood? Express your answer in millimeters of mercury.

*asked by Gun-yuoung on November 30, 2008* -
## Biology

Cancer cells differ from normal cells in that they exhibit all of the following except a. large cytoplasm - i think this one is the answer b. irregular sizes and shapes c. have multiple nuclei d. abnormal number of chromosomes

*asked by Mandy on January 24, 2019* -
## english

im reading a book called " The berlin boxing club" and i need to answer some questions for hw. theres one question that i need help with which is what is the background of the author? What prompted him/her to write this book? the authors name is robert

*asked by matt on November 15, 2012* -
## Chemistry

Calculate the density of a substance in pennyweights that has a volume of 0.287hogsheads and a mass of 55.25kg. 1 pennyweight= 1.55g 1 hogshead=238.5 liters 1 peck=9.091 liters Answer in pw/pk.

*asked by Kacie on September 28, 2013* -
## History

Compare the constitution of 1824 and the U.S. constitution in terms of the individual rights, religion, power of the president, and the right to possess firearms. 4 points please an essay question I need someone to answer and see if I am correct

*asked by hihihiya on October 24, 2018* -
## English

8. Due to the cold, the young man walked spryly across campus. Which of the following options is the meaning of "spryly" as used in the sentence above? A Stiffly B. Staunchly C. Easily D. Briskly I thank D is the correct answer

*asked by BARNETTA on August 15, 2015* -
## physics

Hi I need to know how much ground water presuure would be required to lift a 1.200m diameter plastic tank weighing 650kg out of the ground please, Please supply the answer in Kpa or psi Cheers

*asked by Spencer on July 18, 2011* -
## More Solutions Chem

You have 315.00g of sodium hydroxide. How many liters of dangerous 12.0M sulfuric acid (H2SO4) can you neutralize with your supply? __NaOH(s) +__ H2SO4(aq) -> __Na2SO4 + __H2O(l) I know the answer is .43, but I don't know how to get there. Thanks!

*asked by Sarah on April 15, 2011* -
## Phsyics

A model rocket is launched at an angle of 80 degrees aboce the x axis, with a velocity of 30m/s. How high will the rocket be 5 seconds after launch? ROund your answer to the nearest tenth

*asked by Derrick on September 24, 2013* -
## Personal Dimension of Educatio

Titles of works and company names should be treated as singlular nouns. For example: the Secret Life of Bees is a novel that was made into a movie last year. True or False. My answer is True

*asked by Jackie on November 16, 2012* -
## Language arts

Which of the following words is a synonym for beseeched in the following sentence? Nathan beseeched his parents to stop making him walk to school in the rain. negotiated. begged. (MY ANSWER) questioned. argued.

*asked by LOVE on January 26, 2016* -
## Math

1. O is the center of the given circle. the measure of angle O, is 134. The diagram is not drawn to scale. Assuming that the lines that appear to be tangent are tangent, what is the value of x? A) 67 B) 46 C) 314 D) 268 can someone please help? I saw an

*asked by Tim on June 8, 2016* -
## Pre Calculus

solving exponential equations with exponents on each side 5^x =4^(x+1) They don't have common bases and now I am lost I thought I could just come up with a common base (in this case 20) and change the equation to 20^4x =20^(5x+5) However I am not getting

*asked by Shellie on July 26, 2009* -
## physics

a driver of a car traveling at 15.6 m/s applies the brakes causing a uniform deceleration of 2.1 m/s squared. how long does it take the car to accelerate to a final speeed of 10.9 m/s. answer in units of seconds

*asked by jane on September 18, 2011* -
## Algebra

i have this question i have been working on two days no and cannot get the correct solution. I am to write and equation of the line containin the given point and parallel to the given line. I put my answer in the form of y=mx+b and I keep getting y= 7x+1

*asked by Amanda R on September 7, 2010* -
## Math

A 5 m stepladder propped against a classroom wall forms an angle of 30 degree with the wall. Exactly how far is the top of the ladder from the floor? Express your answer in radical form. What assumption did you make?

*asked by Emily on October 10, 2010* -
## biology/ help please

which part of a neuron in the cerebellum of the brain is the most extensive in terms of anatomical developement? a-hillock region b-cell body c-dendrites d-nucleus e-axon -my answer is axon

*asked by joy on April 8, 2013* -
## Early Childhood Education

Inventive spellers typically: A. write only words they are certain can be spelled correctly. B. never learn conventional spelling. C. omit consonants in words. D. progress through a series of stages. Is the answer D.?

*asked by Sarah on September 16, 2014* -
## precalculus

can you check my work? In exercises 10-12, sketch the curve represented by the parametric equations. Then eliminate and write the corresponding rectangular equation whose graph represents the curve. 10. x=t2-6 y=1/2t-1 answer: t=2y-6= (2y+2)2-6 =4y2+8y-2

*asked by Anonymous on December 14, 2016* -
## stats

How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval? I was told last night that there would be an answer in a couple of hours??????????????????????

*asked by theresa on October 7, 2010* -
## dog behavior

please check my answer thanks so much :) Which one of the following commands is most like a safety net for a dog? A. Controlled walking B. Leave it C. Heel D. Emergency down I am not sure At first I think it would be B because it would stop the dog from

*asked by Maria on July 26, 2008* -
## consumer business math

Beth Pittman earns $12,558 per year. She is paid 52 times per year and claims 2 exemptions. If $8.85 in taxes is withheld from each paycheck, at what rate is she taxed? The answer options are: 3.9% 4.2% and 5.1%

*asked by BUG on April 20, 2012* -
## Physics

the work done in lifting a 600-N barbell 1.6m above the floor. What is the gain of potential energy of the barbell when it is lifted to this height? Express your answer to two significant figures and include the appropriate units.

*asked by Anonymous on March 10, 2014* -
## Math (Instanttaneous rate of change)

Compute the instantaneous rate of change f'(a) for the function f(x) at x=a using: f'(a)=lim(h->0) (f(a+h)-f(a))/h f(x)=x^2 at x=3 My teacher didn't even go over the problem since class was over but gave us the answer being 6. How do you approach this

*asked by Ray on October 13, 2016* -
## Science

Optical telescopes are designed to collect and create images from: A. White or visible light**** B. x-rays C. infra red radiation D. gamma rays My answer is A???? Thank you in advance

*asked by Cassie on April 7, 2014* -
## Physics

A meteorite weighing 1860N strikes the earth with a velocity of 45.2m/s. What is its kinetic energy? Write in SN to one decimal place. When I plugged in (1/2)(1860N)(45.2m/s)^2, I got the answer 1.9e6, but it was incorrect. Please help. I'm really

*asked by Rose on November 19, 2014*

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