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

142,296 questions, page 888-
## Algebra

Please Help!!!! thanks :) 1. Suppose U= {1,2,3,4,5,6,7,8,9,10} is the universal set, and P= {2,4,6,8,10}. What is P'? a: {1,2,3,4,5,6,7,8,9,10} b: {3,5,7,9} c: {1,3,5,7,9}*** d: {2,4,8} 2. If D is the set of natural numbers that are whole numbers less than

*asked by Cupcake on January 13, 2017* -
## physics

Calculate the work required to be done to stop a car of 250 kg moving at a speed of 18km/hr? answer is right or not please check Mass =250 kg Velocity = 18kg = 18 x 1000/60 x 60 = 5 m/s KE = ½ mv x v = ½ x 250 x 5 = 125 x 5 = 625 J Therefore the counter

*asked by Evangelin Lenin on December 31, 2015* -
## Chemistry

I've seen the posts on solving this particular equation, and I know the answer is right in front of me. I'm still having trouble understanding why... a 42g piece of ice at 0.0 degrees C is added to a sample of water at 7.8 degrees C. All the ice melts and

*asked by Elliott on September 22, 2012* -
## Public Administration

I believe I have the correct answer for this one, but just want to make sure. According to theories of French and Raven, Martin Luther King Jr exemplified which style of power in his leadership of the civil rights movement? A. Referent power B. Coercive

*asked by Keith on December 15, 2007* -
## Math

a teacher asked her students to think of a number, multiply by 5, and subtract the product from 20 , then she asked them to multiply the resulting difference by the number they first thougt of a) use function notation to express the final answer in terms

*asked by Melissa on September 22, 2011* -
## Physics

A plane drops a hamper of medical supplies from a height of 2960m during a practice run over the ocean. The planes horizontal velocity was 108m/s at the instant the hamper was dropped. What is the magnitude of the overall velocity at the hamper at the

*asked by Colby on November 19, 2012* -
## English expression

Look at the sun which is shining brightly in the middle of the sky. A dog is running on the field. There are three trees in this picture. A: When do you see these things? B: In the afternoon. (The partner says.) This is also a simple activity. There are

*asked by John on February 12, 2008* -
## math just for fun

A long year-end status report for work is 111 pages long. You need to print 16 copies for a meeting next week. How much is the paper going to cost for those reports? Paper is sold in reams (500 pages) for $3.88 each. Give your answer to the nearest cent,

*asked by TayB on August 27, 2016* -
## physic

A circus performer stands on a platform and throws an apple from a height of 49 m above the ground with an initial velocity v0 as shown in the figure below. A second, blindfolded performer must catch the apple. If v0 = 30 m/s, how far from the end of the

*asked by joy on January 30, 2018* -
## math

Given: f(closure(A)) subset of closure(f(A)) Prove: For any closed set A in Y, f^-1(A) is closed in X (AKA f is continuous) X and Y are metric spaces f: X -> Y f^-1 is f inverse. closure(A) = A U limit points of A The first line is Let C be a closed subset

*asked by gemma on April 14, 2013* -
## physics

A quarterback takes the ball from the line of scrimmage, runs backward for 18.0 yards, then runs sideways parallel to the line of scrimmage for 16.0 yards. At this point, he throws a 49.0-yard forward pass straight down the field. What is the magnitude of

*asked by james on September 16, 2015* -
## Trigonometry

A billiard ball is struck by a cue. It travels 100 centimeters before ricocheting off a rail forming a 45 degree angle and traveling another 120 centimeters into a corner pocket. how far is the initial position of the ball from the corner pocket the ball

*asked by Hailey Lepire on May 15, 2017* -
## P.E

Dominique is helping her friend Kaley learn to do a handstand on the gymnastics mat. To help her friend master this skill, Dominique helps her maintain her balance. Over Kaley’s base of support, Dominique needs to guide her A.Center of gravity B.fulcrum

*asked by Eugene on January 8, 2014* -
## physics

Water falls without splashing at a rate of 0.220 L/s from a height of 2.20 m into a 0.720 kg bucket on a scale. If the bucket is originally empty, what does the scale read 3.20 s after water starts to accumulate in it? The answer is supposed to be in

*asked by jessi on March 22, 2009* -
## Physics

A fireman, 43.7 m away from a burning building, directs a stream jet of water from a ground level fire hose at an angle of 31.3 degree above the horizontal. If the speed of the stream as it leaves the hose is 44.1 m/s, at what height will the stream of

*asked by Luma on October 12, 2015* -
## metric system

say you have a level container that is 10cm by 10cm by 10cm. full of water, it would weight one kg. but say you can put no more than 400g into it. say you have only a metric ruler to determine this. how high can you fill the container? my partial answer: i

*asked by amy on June 20, 2010* -
## Science Help

Which of the following is not a goal of the clean water act? A. Controlling water pollution from point sources B. Encouraging voluntary cooperation by citizens related to nonpoint sources of pollution. C. Educating citizens about the importance of reducing

*asked by callie on November 21, 2014* -
## Introduction to Physical Science

A rule of thumb for estimating the distance in kilometers between an observer and a lightning stroke is to divide the number of seconds in the interval between the flash and the sound by 3. Discuss whether or not this rule is correct. I say it is correct

*asked by Tyrone on August 22, 2013* -
## Physics

A plane drops a hamper of medical supplies from a height of 2960m during a practice run over the ocean. The planes horizontal velocity was 108m/s at the instant the hamper was dropped. What is the magnitude of the overall velocity at the hamper at the

*asked by Laney on November 19, 2012* -
## Physics

35 of copper pellets are removed from a 300 oven and immediately dropped into 120 of water at 20 in an insulated cup.What will the new water temperature be? I'm stuck on this problem and could use some help. I used q pellets = m · Cp · ΔT and q water =

*asked by Liz on April 5, 2011* -
## Physics

A ball is projected horizontally from the edge of a table that is 0.465 m high, and it strikes the floor at a point 1.04 m from the base of the table. gravity is 9.8 m/s the initial speed of the ball is 3.376042 m/s ~How high is the ball above the floor

*asked by Anonymous on November 3, 2015* -
## Physics

A quarterback takes the ball from the line of scrimmage, runs backward for 19.0 yards, then runs sideways parallel to the line of scrimmage for 12.0 yards. At this point, he throws a 43.0-yard forward pass straight down the ﬁeld. What is the magnitude of

*asked by Anna on October 22, 2017* -
## Algebra 2 A Conic Section

Franco is adjusting a satellite because he finds it is not focusing the incoming radio waves perfectly. The shape of his satellite can be modeled by y^2+6y-3x+3=0, where x and y are modeled in inches. He realizes that the static is a result of the feed

*asked by Nino on April 12, 2015* -
## Trigonometry

A billiard ball is struck by a cue. it travels 100 centimeters before ricocheting off a rail forming a 45 degree angle and traveling another 120 centimeters into a corner pocket. How far apart is the initial position of the ball from the corner pocket the

*asked by Hailey Lepire on May 15, 2017* -
## math

a teacher asked her students to think of a number, multiply by 5, and subtract the product from 20 , then she asked them to multiply the resulting difference by the number they first thougt of a) use function notation to express the final answer in terms

*asked by melissa on September 21, 2011* -
## Physics

Imagine that if you drop an apple from a certain height, its final speed is 20 m/s when it reaches the ground. If you throw the apple vertically downward from the same height with an initial speed of 20 m/s, what will be its final speed? I tried

*asked by Maddie on October 7, 2013* -
## chemistry help

sulfuric acid is a strong acid and dissociates in water as shown in reaction H2SO4(aq)=2H^+(aq)+SO4^2-(aq) what is the hydrogen ion concentration, in mol dm^-3,when 1.50g of sulfuric acid is dissolved in water to give 0.500dm^3 of solution ?show all of

*asked by zak on December 30, 2012* -
## math

The total distance the plane flies from Chicago to New York City is 792 miles. The flight is 2 hours and 5 minutes long. The plane flies at about the same speed during the trip.• Round the flight time to the nearest hour. About how far will the plane fly

*asked by snoyu on March 16, 2017* -
## Meteorology

On a clear and calm day, the air temperature at sunrise is 5 °C (41 °F) with a relative humidity of 90%. The air temperature reaches a maximum of 15 °C (59 °F) at 3 p.m. Assuming that no water vapor is added to or removed from the air, predict the

*asked by Anonymous on March 17, 2016* -
## Grammar

1.Which of the following sentences have (unreduced) compound clauses? Briefly explain your answer. a.I like cities with parks and public sculptures. b.Everyday he either burns the toast or overcooks the eggs. c.Neither does he drink nor does he swear.

*asked by Nora on April 7, 2009* -
## STATISTICS

It is generally believed that electrical problems affect about 14% of new cars. An automobile mechanic conducts diagnostic tests on 128 new cars on the lot. a. Describe the sampling distribution for sample proportion by naming the model and telling its

*asked by LT on October 30, 2007* -
## Chemistry - Answer Check

Gaseous hydrogen and iodine are placed in a closed container at 425 degrees Celsius. The reactants react to produce the gaseous compound hydrogen iodide, which partially decomposes back into hydrogen and iodine gas as shown below. H2 (g) + I2 (g) 2HI (g)

*asked by Anonymous on May 17, 2016* -
## chem11

Suppose you have a large supply of sponge balls with weights in the centre, so that when the balls are piled on each other the bottom ones are flattened. Sketch a graph that generally describes mass vs. volume for these sponge balls. Also, would weighted

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

A good writer makes events in a story occur plausibly. The action should be consistent with the characters; if the author forces them into uncharacteristic behavior in order to advance the plot, the story will seem artificial. In "Thank You, M'am, " by

*asked by Dylan on November 9, 2011* -
## Check - History.

Is this a good answer? Ethnic groups are similar because many are of the same ethnicity. According to a teacher/tutor, "Canada prides itself on being like a stew with each ethnic group contributing separate and identifiable cultures. The U.S. likes to

*asked by Random Girl on February 6, 2018* -
## Physics

A pair of constant forces of magnitude F = 11.1 N is applied to opposite sides of the axle of a top, as shown in the figure. The diameter of the axle is d = 8.67 mm. The angle è, which has a value of 36.1°, describes the steepness of the top's sloping

*asked by Physics on December 10, 2013* -
## Physics

The innerspring mattress on your grand- mother’s bed is held up by 23 vertical springs, each having a spring constant of 6000 N/m. A 43 kg person jumps from a 1.93 m platform onto the innersprings. The acceleration of gravity is 9.8 m/s2 . Assume: The

*asked by Katie on December 16, 2013* -
## Elementary Statistics help

It is generally believed that electrical problems affect about 14% of new cars. An automobile mechanic conducts diagnostic tests on 128 new cars on the lot. a. Describe the sampling distribution for sample proportion by naming the model and telling its

*asked by LT on October 29, 2007* -
## geography

1. Which country is the smallest in land area in Central America? largest? El Salvador has the smallest area. Mexico has the largest area. 2. What do Finland, Poland, Czechoslovakia, Hungary and Romania all have in common? The countries are all in Europe.

*asked by Reed on November 27, 2011* -
## english

A good writer makes events in a story occur plausibly. The action should be consistent with the characters; if the author forces them into uncharacteristic behavior in order to advance the plot, the story will seem artificial. In "Thank You, M'am, " by

*asked by crystal on August 6, 2010* -
## physic

hi,need help please.thank. A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 2.00 m and a mass of 525 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up

*asked by Chan on November 23, 2009* -
## 8 th grade math

each side of square is 6 in. long . a scale factor of 2/3 is used to draw a similar square. how long is each side of similar square . choices are 4in. ,6 in., 8in. ,answer not here i chose 8 in. is that right

*asked by Anonymous on May 14, 2012* -
## math

1. The x-intercept of a line is -3. The y-intercept of a line is 6. What is the slope of the line? 2. What is the equation in slope-intercept form of the line described in Exercise 1? can you please explain and answer it?? im having lots of trouble with

*asked by xxx on May 3, 2009* -
## MATH

Am I correct? A suit that normally sells for $300 is on sale for $225. By what percent has the price of the suit been lowered? 300-225=75, 75 x 100=7500, 7500/300=25 Answer 25%

*asked by Amie on March 20, 2016* -
## MATH

if line segment AC =120ft and the ratio of line AB:line BC=3:5, what is the length of line AB ? I set up the equation as x:120,3:5 x/120=3/5 3/120=360, 360 divided by 5=72 the answer in the book is 45, need help

*asked by Rose on October 27, 2008* -
## Chemistry

An experiment called for 4.83 L of sulfur dioxide at 0 degrees C and 1.00 atm. What would be the volume of this gas at 25 degrees C and 1.00 atm? V1= 4.83 L V2= ? T1= 273 K T2= 298 K 1 atm P1 and P2 V2 = V1 * T2/T1 4.83 L * 298 K /273 K = ANSWER: 5.27 L Is

*asked by Lauren on October 22, 2007* -
## math HELP FAST PLEASE

bella baked 6 dozen cookies. she wants to keep 1 dozen and give the rest to 20 friends. she wants to give an equal number of cookies to each friend. how many cookies does each friend get? justify your answer.

*asked by Anon on November 9, 2011* -
## Math

Mrs Rossi wrote a mystery number it is 3 digit number the tens are double the ones the hundred are double the tens the sum of the digit is 14 What number is it. The answer is 491

*asked by Khylan on February 1, 2017* -
## Chemistry

Which is the electrophilic site in the molecule (CH3)2C=O? A. CH3 carbon B. CH3 hydrogen C. C=O carbon D. C=O oxygen I think the answer is D. because oxygen is electronegative and wants electrons thus making it electrophilic. Is this correct?

*asked by Anonymous on October 11, 2016* -
## math

use counters to model problems.1.Oliver has one juice box.Lucy has one fewer juice box than Oliver.How many juice boxes does Lucy have? Write the number. answer 1/2?

*asked by susan on October 8, 2014* -
## math

Sean bought 8 slurpees at $1.50 each and 6 Popsicles. He gave the cashier $25.00 and received $4.00 change. How much did each Popsicle cost? my answer: each slurpees for $1.50 the total will be = 8x $1.50= $12 for all slurpees. so, $25-12= 13 13-4 (the

*asked by bandar on September 4, 2015* -
## Science Help!

Which chemical equation shows that no atoms are lost during a chemical reaction? A. 8Fe+s8-->Fe5 B. 8Fe+8S8--> 8FeS C. Fe+8S8--->FeS D. 8Fe+S8--->8FeS Is the answer A?

*asked by Callie on November 14, 2014* -
## Algebra

Describe the differences between a linear function and an exponential function. my answer is Linear functions have a constant rate of change while an exponential function has a constant finite ratio.

*asked by Faye on August 20, 2014* -
## finance (stock price)

A firm with earning per share of $5 and a price-earnings ration of 15 will have a stock price of? P/E ratio = stock price / earnis per share 15 = X / 5 X = 15(5) x = 75 FINAL ANSWER stock price is $75.00 Is this correct?

*asked by Jason on July 25, 2008* -
## Geometry

The equation (x + 5) + (y + 3) = 169 models the position and range of the source of a radio signal. Describe the position of the source and the range of the signals. ???? Would the answer be (5,3) is the center and 13 is the range of signals..??

*asked by Alexa on October 2, 2015* -
## maths triangels

a building having height 25ft cast a shadow 35ft and a person standing on the building of height h and cast a shadow 10 ft wht is the height off man ? please answer me how to solve

*asked by jaspreet on January 24, 2015* -
## Math

A pill weighs 70 mg. 7/9 of the pill is the active ingredient. How many milligrams are in the part of the pill that is not the active ingredient? So if 7/9 is active that means 2/9 is not active. I did 2 divided by 9 which gives me .22 I then multiplied 70

*asked by Luis on January 31, 2015* -
## Math

Dvd cases are 9/16 inch wide . A. If Juan has 60 DVD how many of them will fit on one shelf? How wide would a DVD case have to be in order for 60 of them to fit on one shelf? Give the answer in feet

*asked by Hassan on September 26, 2016* -
## physics

A 68 g ice cube at −23◦C is dropped into a container of water at 0◦ C. How much water freezes onto the ice? The specific heat of ice is 0.5 cal/g ·◦ C and its heat of fusion of is 80 cal/g. Answer in units of g.

*asked by Reese on April 4, 2019* -
## Geometry

Sonia counts the faces on a cube. Then, she connects a cube and counts the faces that she can see on the two cubes . How many faces will be visible if she ends up with a row of 5 cubes? Can you give me more details with answer.thank you

*asked by Mia on April 15, 2012* -
## Pre-cal

What is the probability of getting an even number on a single roll of a number cube if you roll a 3 or greater. My answer: is 1/3 because there are only two numbers that are even and greater than 3 on the number cube. Teacher marked this as wrong. How did

*asked by Lucy on January 3, 2009* -
## MATH

A spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.2 cm/min. At what rate is the volume of the snowball decreasing when the diameter is 8 cm? (Note the answer is a positive number). Rate =? d ?

*asked by Jia on March 6, 2007* -
## math

Sean bought 8 slurpees at $1.50 each and 6 Popsicles. He gave the cashier $25.00 and received $4.00 change. How much did each Popsicle cost? my answer: each slurpees for $1.50 the total will be = 8x $1.50= $12 for all slurpees. so, $25-12= 13 13-4 (the

*asked by bandar on September 3, 2015* -
## Trig

Solve in terms of sine and cosine: sec(x) csc(x)- sec(x) sin(x) so far I have: 1/cos(x) 1/sin(x) - 1/cos(x) sin(x) I am not sure where to go to from there. The book says the answer is cot(x) or cos(x)/sin(x) Thank you in advance.

*asked by Dennis on April 9, 2008* -
## physics

A 3.3 kg ball strikes a wall with a velocity of 8.4 m/s to the left. The ball bounces oﬀ with a velocity of 6.8 m/s to the right. If the ball is in contact with the wall for 0.27 s, what is the constant force exerted on the ball by the wall? Answer in

*asked by michael on February 23, 2014* -
## Math

If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less than 2500 hours? A. About 25% B. About 50% C. About 75% D. About 68% Answer B

*asked by angela on May 4, 2016* -
## Please Help Anyone! :]

____ kg = 440 g ((Help Please)) ____ kg 1,006,000 ((Help Please)) 8.6 kg = ____ g ((8600/0.0086??)) 800 g = ____ mg ((800.000??)) 1.7 kg = ____ ((1700/0.0017??)) ____ mg = 6.2 kg ((Help please)) (((((I understand it it's just I can't get a correct answer

*asked by Cheyenne on September 16, 2009* -
## Riddle

There is one pond in which one lotus gets doubled everyday. In 20 days pond is half filled. so how many days it will take to get full completely? Thx the answer is 21?? yes. Double of half-full is full.

*asked by Veronica on June 4, 2007* -
## Cardiovascular

-----------leukemia affects the bone marrow and develops gradually. A.acute myelocytic B. chronic lymphocytic C.acute lymphocytic D.chronc myelocytic My answer is Chronic Lymphocytic

*asked by Brenna on April 22, 2012* -
## physics

A certain pendulum on Earth has a period of 1.6 s. What would be the period of this pendulum if it were taken to another planet that had 1.75 times the mass of the Earth and 2.5 times the Earth's radius? Express your answer in seconds to three significant

*asked by Zac on April 7, 2016* -
## Creating High-Quality Centers

The sensory center can help children develop skills and knowledge in which of the following domains? A. Physical and social B. Physical only C. Physical, social, emotional, and cognitive D. Physical, social, and cognitive my answer is c.

*asked by Priscila on March 14, 2017* -
## Math Help

Consider the quadratic equation (a) Solve the equation using the quadratic formula, expressing your answer in terms of k. (b) What condition on k will assure that the equation has exactly one solution? (c) What condition on k will assure that there are two

*asked by Tony on April 28, 2014* -
## Physics

Part A of this question asks for the sum of vector A = 3x+5y and vector B = 1x-3y. I did this and got the vector A + vector B = 4x+2y. Part B then asks what the magnitude and direction of vector A + vector B? The answer in the back of the textbook says

*asked by Kendall on September 22, 2015* -
## math

The volume of ice-cream in the cone is half the volume of the cone. The cone has a 3 cm radius and height of 14 cm. What is the depth of the ice-cream, correct to 2 decimal places? Answer = 11.11

*asked by anonymous on February 22, 2018* -
## arithmetic

A store manager just received 117 movies packaged in boxes. If the same number of movies are in each box, how many boxes could have been received?How many movies would be in each box?Could you Explain how you arrived your answer.

*asked by Victoria on September 21, 2011* -
## chemistry

consider the balanced chemical equation 2H2O2 ---> 2H2) + )O2 A) given 20.0 g of H2O2 how many grams of water will be produced? B) how many grams of H2O2 will you need to get 20.0 g of water ? C) how many grams of H2O2 will you need to get 20.0 g of O2 D)

*asked by Sofia on July 19, 2018* -
## to Ms. Sue

thank you for answering the question. My answer is that the Assyrian Empire is closer in location to the kingdom of Israel than the Kingdom of Judah that makes Kingdom of Israel vulnerable to Assyrian Empire. is this right? thank you.

*asked by rx on September 28, 2009* -
## Pre-Algebra

A 5-foot parking meter has a 4-foot shadow from a nearby streetlight. The streetlight is 15 feet tall. How far is the streetlight from the parking meter? Don't want answer, just want formula for figuring out

*asked by Lorri on February 15, 2015* -
## 8th grade science

answer yes or no to weight, velocity,speed,& mass. 2 identical planes taveling @ 300 km/hr in opposite directions both have the same: weight-yes, velocity-no, speed-yes, mass-yes. velocity is a no, correct?

*asked by Roy S. on February 20, 2011* -
## Math integrals

What is the indefinite integral of ∫ [sin (π/x)]/ x^2] dx ? This is what I did: Let u = π/x (to get the derivative and du:) π*1/x π(-1/x^2)dx = du π(1/x^2)dx = (-1)du so, 1/x^2 = -1/πdu then ∫ [sin (π/x)]/ x^2] dx = ∫ sin(u) (-1/π)du = -1/π

*asked by Marissa on August 15, 2008* -
## Maths

Using the exact trigonometric ratios of 45 degree,30 degree and 60 degree,evaluate the following,leaving where necessary your answer in surd form. (a) 3 sin 30 degree-2 cos 60 degree (b)(tan 45 degree)(4 cos 60 degree-2 cos 60 degree)

*asked by Shane on April 5, 2013* -
## Math

Rita's baby brother weighed 7 5/16 pounds when he was born. Since then, her brother has gained 3 3/4 pounds. How much does Rita's baby brother weigh now? Express your answer as a fraction and as a decimal.

*asked by Amy on March 7, 2017* -
## Language Arts

Which of the following sentences uses a predicate noun? A. Jessica's bike ride was uneventful. B. The owner of the bike is she. C. Jessica is the owner of the pink bike. D. Jessica's bike looks brand new. I've been researching this for a while now and I

*asked by Callie on February 25, 2015* -
## juvenile justice

What are the major differences between the contemporary criminal (adult) justice system and the juvenile justice system? Are the major differences appropriate, given the differences between adults and children? Explain your answer.

*asked by susan on February 12, 2009* -
## Science

Which chemical equation shows that no atoms are lost during a chemical reaction? A. 8Fe+s8-->Fe5 B. 8Fe+8S8--> 8FeS C. Fe+8S8--->FeS D. 8Fe+S8--->8FeS Is the answer A?

*asked by Kelly on April 16, 2015* -
## geography

Can you check my answer please? 1. To what hemispheres do the following countries belong? Soviet Union: Northern and Eastern Hemispheres, Canada: Northern and Western Hemispheres, China: Northern and Eastern Hemispheres.

*asked by Reed on October 29, 2012* -
## math

Think about it ... Julie says that a rotation of 180° around the origin is the same as the reflection in the x-axis followed by a reflection in the y-axis. Is Julie correct? Justify your answer and be sure to include a diagram. I just wanna know does

*asked by Key on April 24, 2018* -
## math 2

ellen needs to buy 180 inches of ribbon to wrap a large present. the store sells ribbon only in whole yards. How many yards does ellen need to buy to have enough ribbon? Please answer thanks

*asked by Jenny plus on February 10, 2014* -
## math

Adelyn and Hudson each have a canvas that is the same size. Adelyn paints 3 8 of her canvas. Hudson paints 5 8 of his canvas. Who painted a fraction that is closer to 0 than to 1? Use the drop-down menu to show your answer

*asked by Yeremiyah on April 14, 2019* -
## Physics

A 2.7 kg ball strikes a wall with a velocity of 7.6 m/s to the left. The ball bounces oﬀ with a velocity of 5.2 m/s to the right. If the ball is in contact with the wall for 0.23 s, what is the constant force exerted on the ball by the wall? Answer in

*asked by Angel on January 22, 2012* -
## Math ---HELP!!!!!

If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less than 2500 hours? A. About 25% B. About 50% C. About 75% D. About 68% Answer B

*asked by angela on May 5, 2016* -
## physics

A 27 g ice cube at −25◦C is dropped into a container of water at 0◦C. How much water freezes onto the ice? The specific heat of ice is 0.5 cal/g · ◦ C and its heat of fusion of is 80 cal/g. Answer in units of g.

*asked by Ion on February 9, 2015* -
## chem

The total pressure in a flask containing air and ethanol at 257C is 800 mm Hg. If the pressure of the air in the flask is 762 mm Hg, the vapor pressure of ethanol is? I tried doing a relationship of P1 over t1 etc but i don't get the right answer.

*asked by Anonymous on April 28, 2008* -
## Math

I need help to set the equation up to solve a system to ensure that I get the answer of (-2, 4)? I also need tosolve two problems in the quadratic equation method, the two problems are x to the second power - 2x - 13 = 0 then the other is x to the second

*asked by Dona on April 29, 2013* -
## Algebra

A pawn shop is selling gold for $12.00 an ounce and platinum for $9.00 an ounce. How much of each should be used to make a gold-platinum mixture of x pounds selling for $y an ounce? Please explain to do the problem with an answer. :)

*asked by ja17 on January 22, 2013* -
## Math

Lucas says that since 40x70 and 60x50 both have factors with a total of two zeros, they will both have products with a total of two zeros. Is this correct? Explain. 40x70=2800 and 60x50=3000. They both have zeros in the answer. Right

*asked by Amari on October 2, 2014* -
## English-Ms. Sue

What is the purpose of this essay? How can you tell? - Second part how can I tell? - I can tell by, well this essay talks only about puns, there are a variety of different types of puns in here. Ms. Sue I want to take the well out of my answer, but if I do

*asked by Sara on February 1, 2010* -
## chemistry

Describe how a 250.0 mL aqueous solution of 1.50 M MgCl2 is prepared from a stock solution of 6.00 M MgCl2. ANSWER: Measure 62.5 mL of the stock solution into a container and dilute to 250.0 mL so what i need explained is where did 62.5 mL come from?

*asked by Stacy on December 13, 2010* -
## Statistics

In a poll of voters in a certain city, 32% said that they backed a bill which would limit growth and development in their city. The margin of error was reported as 1.7% with 90% confidence. Determine the bounds for the confidence interval. A) (88.3%,

*asked by Nick on October 27, 2013* -
## english

Identify the tenses that are used in THIS sentence. 76. The owners must have installed the equipment 20 years ago. A: Present perfect in the passive voice B: Past tense with a modal C: Present continuous with a modal. D: Future perfect in the passive voice

*asked by Althea on July 28, 2017*

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