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

143,010 questions, page 722-
## please help if you CAN I DONT UNDERSTAND!

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. how do we do this?!

*asked by ADVANCED GEOM on December 8, 2012* -
## Math

A Classroom bulletin board is 7 feet by 4 feet. If there is a picture of a student every 6 inches along the edge, including one in each corner, how many pictures are on the bulletin board? The teacher gave me the answer 40 but I don't know how.... Can you

*asked by Maria on September 10, 2013* -
## Math

My question showed a bar graph showing the number of days of class 20 students missed. "What is the average number of days that each student missed?" A) 1 B) 1.5 C) 1.7 D)2 E)2.3 **The answer's 1.7 (according to my teacher), but from solving it I either

*asked by eunice on August 11, 2017* -
## Statistics

Could someone help out with this question. The answer is 1842, but i'd like to know how to solve it. Thanks BCC wants to estimate the proportion of its students who are single parents. How many students should BCC survey if it wants to be 99% confident

*asked by Jay Ortwein on October 28, 2011* -
## Science

Daylight hours in the summer time are noticeably longer than in the wintertime. Why? My answer: Since the direct sunlight hits the Northern Hemisphere and we are getting as much direct sunlight as possible, the days are longer. Is this correct?

*asked by Cassie on March 18, 2009* -
## Statistics

Why do we need to distinguish between strong and weak correlation of data sets using best-fit lines? When a correlation has been established between the two data sets, how is it linked to causality? Please provide examples to support your answer.

*asked by immanuel on June 1, 2010* -
## physics

A 200m long train crosses a 400m long bridge with a speed of 36km/hr . Calculate the time taken by train to cross the bridge? plz give me the answer with explaination

*asked by Maihul on July 6, 2012* -
## organic chemistry

should you use decolorizing charcoal before allowing the hot solution to cool in? Explain Your answer is here. http://www.google.com/search?hl=en&lr=&ie=ISO-8859-1&q=decolorizing+charcoal&btnG=Search

*asked by sheri on November 12, 2006* -
## interview for teachers

do u consider spanish language difficult? why or why not? can u say at least 10 words in Spanish (words you know its meaning) the teacher said it could be less than 10 but i need to interview a teacher so i was thinking if any teachers here could answer

*asked by reina bonilla on April 29, 2015* -
## English (The Tempest)

hi Can someone explain to me about the theme of Illusion of Justice? if i have a question like analyse the theme of illusion of justice?? as an answer..should i talked how Prospero took his revenge against those who have betrayed him...by Ariel and

*asked by Taskeen on October 6, 2009* -
## chemistry

In a titration, 3.4 g of an acid (HX) requires 21.5 mL of 0.85 M NaOH(aq) for complete reaction. What is the molar mass of the acid? Answer in units of g/mol. im not really sure how to even start... but i calculated the moles of NaOH which i got to be .018

*asked by Lulu on October 24, 2010* -
## Math

Due to evaporation, the water level in Wesley's aquarium dropped 2 cm a week during the first three weeks in July. What integer represents the change in water level during the three-week period? -2 cm. -3 cm. -6 cm. -9 cm.(MY ANSWER)

*asked by LOVE on August 19, 2016* -
## PHYSICS

SUPPOSE THAT THE ELECTRIC POTENTIAL OUTSIDE A LIVING CELL IS HIGHER THAN THAT INSIDE THE THE CELL BY .068 V. HOW MUCH WORK IS DONE BY THE ELECTRIC FORCE WHEN A SODIUM ION (CHARGE = e+) MOVES FROM THE OUTSIDE TO THE INSIDE? ANSWER = ? J

*asked by Al on October 9, 2007* -
## Chem Check Please!!!

Calculate for the electrochemical cell below, Ag(s) | AgCl(s) | Cl–(aq) || Cu2+(aq) | Cu(s) given the following standard reduction potentials. Cu2+(aq) + 2 e– -> Cu(s) E = +0.337 V AgCl(s) + e– -> Ag(s) + Cl–(aq) E = +0.222 V a. –0.115 V b.

*asked by Anonymous on May 6, 2014* -
## Math problem

A disoriented driver crosses diagonally from one corner of a 150 m by 275 m lawn to the far corner. How far does the wayward driver drive across the lawn? Give an approximate answer to three decimal places.

*asked by Shawn on October 27, 2008* -
## PreAP Physics

A force of 600N is applied to a metal box to pull it 15 m across a floor. The roped used to pull the box is held at an angle of 46 degrees with the floor. How much work is done? My answer is w= 6251.93J

*asked by Mandy on November 23, 2011* -
## eng 122

The modification of text with the intent of changing phrases, changing words, or interspacing the student's work into the plagiarized work is plagiarism. (Points : 1) True False answer true

*asked by madam on August 29, 2016* -
## health

A person who is afraid of heights likely suffers from ( select all that apply ) a)anxiety b) a phobia c) obsessive-compulsive disorder d) an impulse control disorder Would Someone Please Help Me With The answer I Know One Is Phobia But I Don't Know The

*asked by Nick on November 17, 2015* -
## math

Why do we need to distinguish between strong and weak correlation of data sets using best-fit lines? When a correlation has been established between the two data sets, how is it linked to causality? Please provide examples to support your answer.

*asked by immanuel on June 2, 2010* -
## Math

a specific brand name has an 80 recognition rate 10 people are randomly surveyed in an area to determine if the rate is valid. what is the probability that exactly 8 people recognize the brand? The answer is 0.302 but how do you solve it?

*asked by Anonymous on December 20, 2018* -
## Chemistry

A 16.5 cm3 bubble under the ocean at 2.1 atm and 12.5oC surfaces to 1.0 atm and 22.1oC. What is the new volume (in cm3)? i used (p1)(V1)/T1=(P2)(V2)/T2 (2.1)(.0165)/285.65=(1)(V2)/295.25 THE ANSWER I GOT IS .0335 i changed 16.5 to liters which is why its

*asked by APRIL on October 17, 2010* -
## Physics

Tigger jumps into the sandpit. As this 13 kg animal jumps up, his initial velocity is 6 m/s with an angle of 26 degrees. As Tigger lands into the sandpit, how much work is done by the sand to stop him? Answer in units of Joules

*asked by Rebecca on November 28, 2012* -
## physics

A staging that weighs Wstaging supports a painter weighing 620 N. The reading on the left scale is 660 N and the reading on the right scale is 410 N. What is the weight of the staging? Answer in units of N

*asked by Evans on September 1, 2013* -
## 5th Grade Math

There are about 3,400 species of frogs and toads, and scientists tell us that they represent 90% of the amphibians in the world. Using this information, what is total number of amphibians scientists believe are in the world. (Round your answer to the

*asked by Janice on February 10, 2011* -
## Math

Lin earns $12 an hour. She wants to buy a new MP3 player. She is considering models that cost at least $84. Writ an inequality that describes how many hours Lin needs to work to be able to buy the player. Explain the answer.

*asked by Damarcus on April 16, 2015* -
## math

Christopher made three and one fourth dozen cupcakes . He added vanilla icing to one third and chocolate to the rest . How many cupcakes in dozen have chocalote icing ? I need answer and show work pls

*asked by Hannah on March 3, 2015* -
## exceptional children

a naturalistic language-learning environment a occurs mostly in the home b. is created whenever a child is communicating with others c. occurs mostly in speech therapy d. excludes speech therapy I chose "c" as my answer can someone please check

*asked by Anonymous on January 25, 2011* -
## math

james said that it would cost him $6.55 per day to ski each of the five days if he bought a weekday pass. Why is his answer incorrect? type of ticket cost days used weekday $327.50 mon-fri

*asked by stephanie on April 11, 2012* -
## math

I tried everthing but,I couldn't solve it. Please help me.the answer at the back is 40960.13 question: solve for x and check your solution. logx/log2 + logx/log4 + logx/log8 + logx/log16 = 25 THANK YOU FOR YOUR KIND HELP!!!!

*asked by priya on June 2, 2011* -
## finite math

An urn contains 4 red, 6 white, and 3 blue marbles. Three marbles are selected at random and without replacement. What is the probability that one of each color is selected? Give your answer as a decimal number, with 3 decimal places.

*asked by amelia on February 22, 2015* -
## science

Which of the following pairs of elements are likely to form ionic compounds: A) helium and oxygen B) magnesium and chlorine C) chlorine and bromine D) potassium and sulfur E) sodium and potassium F) nitrogen and oxygen I believe the answer is d and f

*asked by jake on September 18, 2011* -
## Chemistry

A balloon originally had a volume of 6.63 L at 86 °C and a pressure of 684 torr. The balloon must be cooled to __________°C to reduce its volume to 6.03 L (at constant pressure). Express answer to the tenth decimal place

*asked by Camarra on April 22, 2010* -
## physics

a sound wave has frequency of 631 Hz in air and a wavelength of 0.54m. what is the temperature of the air? assuming the velocity of sound at 0 degree celcius is 334 m/s. answer in units of celcius.

*asked by OMAR on May 30, 2011* -
## Geometry I

Two transformations take place, the resultant change is A(x,y) ---A''(x+4, y-^, This is a result of a reflection in the y axis followed by a _________ (translation, reflection, rotation). I have the answer give by teacher as a "reflection, but I don't

*asked by Susana on October 16, 2016* -
## American History

True or False The population of the United States dropped sharply after World War II. -----------------my answer: True Because world war II resulted in more deaths and destroyed more propertey than any other was in history. is it right?

*asked by CM on April 30, 2008* -
## algebra/can you see if I am on the right track

A state's license plates consist of four letters followed by three numerals, and 246 letter arrangements are not allowed. How many plates can the state issue? 26^26^26^26=456976-246 answer 456,730 thank you

*asked by Mary Ann on May 25, 2014* -
## Physics Help

What is the angular momentum of the Moon in its orbit around Earth? I assume I need the mass of the moon, radius of the moon, and angular velocity of the moon. Found those on google, plugged them into my formula (Iw) and got the wrong answer...

*asked by tyger2020 on January 4, 2018* -
## math

sales of computer increased by 5% per year over a 7 year period. by what total percent did sales of computers increase during this time period. round the answer correct to one decimal place

*asked by s.falk on October 19, 2016* -
## Geometry

What is the area of an equilateral triangle with sides of 10 inches and height of 7 inches? Can you please check my answer and my reasoning? A. 44 sq. in. B. 20 sq. in. C. 70 sq. in. D. 35 sq. in. I picked D, because I took 10x7=70and divided that by 2,

*asked by Carrie on February 12, 2014* -
## ap chem

A certain volume of a .50 M solution contains 4.5g of a certain salt. What mass of the salt is present in the same volume of a 2.5 M solution? Indicate the concentration of each ion/molecule: A mixture of 50.0 mL of .2M KClO3 and 25.0 mL of a .20M Na2SO4.

*asked by lily on September 13, 2007* -
## College Chemistry

Which is the correct form of equilibrium expression of the following reaction. 2PbS(s)+3O2(g)reverse arrow 2PbOs + 2SO2g Why is the answer Kc= SO2 power 2/O2 power 3 Why in particular is this the arrangement for equilibrium expression? Thank you

*asked by Helen on October 21, 2010* -
## chem

Hello, I need help solving this problem on intermolecular dispersion forces. Can you explain how I go about finding the answer? Which member of the following has the stronger intermolecular dispersion forces? a. CO CO2 neither of these b. CH3CH2CH2CH2Br

*asked by manny on August 23, 2007* -
## Physics.

The top floor of a building is 40m above the basement. Calculate how much greater the water pressure is in the basement than on the top floor. Express your answer to two significant figures and include the appropriate units.

*asked by James on March 27, 2014* -
## Geometry I

Two transformations take place, the resultant change is A(x,y) ---A''(x+4, y-6), This is a result of a reflection in the y axis followed by a _________ (translation, reflection, rotation). I have the answer give by teacher as a "reflection, but I don't

*asked by Susana on October 16, 2016* -
## Grammar

It's hard to believe that a woman her age could accomplish so much. My answer: no change Why not this? It's hard to believe that she could accomplish so much. I believe this is a sentence in a "non-sexist, non-agist" type of assignment, so you need to get

*asked by Laurie on August 3, 2007* -
## Pre CAlc (calendar ?)

how do you answer :a bug lives on the corner of a cube and is allowed to travel only on the edges of the cube. in how many ways can the bug visit each of the other seven corners once and only once returning to its home corner only at the end of the trip?

*asked by Ryan on November 1, 2009* -
## Chemistry (check formula please)

how much energy (in kJ) is required to change the temp of 1.00 kg of Fe from 25.0 degrees celsius to 1515 degrees celsius? the specific heat capacity of iron is 0.449 J/g*K. this is the answer i got. q=(.449)(1.00)(1490)= 669.01 kJ

*asked by Danielle on April 5, 2010* -
## 6th grade math

Estamate each sum or diffrence by rounding to the greatest place value. 998,927-100,724 would the answer be 1,000,000-100,000=900,000 Thank you for helping me on my homework!

*asked by Claire on August 22, 2011* -
## College Chemistry

HELP ME PLEASE! 1. Calculate the weight of 16.2L of pure SO2 gas at STP. (answer in grams) a.16.2 b.31.8 c.39.5 d.46.3 e.64.1 2.A volume of 725mL of a gas is collected at 105Celsius and 745torr. The gas weighs 1.93 grams. What is the Gas? a.Fe2 b.Ar c.Kr

*asked by Lynn on April 4, 2010* -
## Chemistry

Consider the generic reaction: 2 A(g)+ B(g)--> 2C(g). If a flask initially contains 1.0 atm of A and 1.0 atm of B, what will be the pressure in the flask if the reaction proceeds to completion? (Assume constant volume and temperature.) answer is 1.5atm how

*asked by Mark on October 18, 2015* -
## Financing and Budget

This question is based the figure above. Fill in the missing lines in the balance column of this figure. Then, answer the question. What is the family's current (most recent) balance? A. $570 B. $330 C. $210 D. $0 C.

*asked by Amanda on November 10, 2014* -
## chemistry

A backpacker carries 2.1 of white gas as fuel for her stove.How many pounds does the fuel add to her load? Assume the density of white gas to be 0.79 . Express your answer using two significant figures

*asked by patrice on October 14, 2010* -
## Algebra

I am having a hard time with this problem 3. You are going to plant trees in your hilly backyard. Tree A is located at coordinates (1,2) and Tree B is located at (3,12). What is the slope of the hill between the two trees? Show how you arrived at your

*asked by Sydney on September 8, 2010* -
## Math

The distance from earth to planet X is 1.7(10^7)miles. If a spaceship is capable of traveling 1,420 miles per hour, how many DAYS will it take the spaceship to reach the planet X? Round the answer to the nearest day.

*asked by LP on January 6, 2013* -
## Financing and Budget

This question is based the figure above. Fill in the missing lines in the balance column of this figure. Then, answer the question. What is the family's current (most recent) balance? A. $570 B. $330 C. $210 D. $0 C.

*asked by Amanda on November 10, 2014* -
## physics

A car travels 1.72 km in the x direction, then turns left 50.4 degrees to the original direction and travels an additional distance of 1.97 km. Calculate the x component of the car's net displacement. Answer in units of km.

*asked by bubba on August 27, 2009* -
## Financing and Budget

This question is based the figure above. Fill in the missing lines in the balance column of this figure. Then, answer the question. What is the family's current (most recent) balance? A. $570 B. $330 C. $210 D. $0 C.

*asked by Amanda on November 10, 2014* -
## math

At Yo-Yo Yogurt, the scale says that Sarah has 8 ounces of vanilla yogurt and her father's yogurt weighs 11 ounces. How many Pounds of frozen yogurt did they buy altogether? Express your answer as a mixed number

*asked by jac on February 17, 2017* -
## physics

A child is standing on a platform of a station. A train travelling at 30m/s takes 3.0 secs to pass the child.What is the length of the train. a)10m-this was my answer b)27m c)30m d)90m

*asked by sarah on November 9, 2014* -
## math

Mom and I are having a difference of opinion on this question, can you please help. what is the distance between the two numbers on the number line. -7/4 and 3/8 are the two numbers. I made -7/4 into -14/8 then did -14/8 -3/8 next -14/8 + -3/8 =-17/8= - 2

*asked by sara7 on October 20, 2015* -
## Math

A bag contains 5 blue, 4 red, 9 white, and 6 white marbles. If a marble is drawn at random and replaced 100 times, how many times would you expect to draw a green marble? Answer: 12/50

*asked by Tom on January 14, 2014* -
## Math

If you are throwing a dart at the circular target pictured below, and it is equally likely to hit any point on the target, what is the probability that the dart will hit any of the small inner circles? Use 3.14 for , and round your answer to the nearest

*asked by Lu on June 4, 2017* -
## Physics

Which motor performs more work in the same amount of time- a 10 kW or a 20 kW motor? Explain your reasoning. Power masures work per unit time and kW is a way of measuring it. That should make the correct answer obvious.

*asked by Anonymous on December 10, 2006* -
## math

Alicia,Charles,and Yumiko all planted gardens using 36 feet of fencing for th perimeter. The area of Charles's garden is 45 square feet. What are the dimensions of his garden? What shape can I use to represent th answer?

*asked by khamari on February 27, 2013* -
## math

The ratio of kangaroos to koalas is9 to5. If there were 414kangaroos how many koalas were there? 5/14=x/414 14x=2070 x=147r12 correct?? if this is correct what is the proper way to write the answer or would you just write it as it is shown?

*asked by heather on May 3, 2011* -
## Chemistry

At a high temperature, the equilibrium constant for the decomposition of hydrogen iodide is 65.0. If the initial concentration of HI is 1.60 M, what is the concentration of hydrogen at equilibrium? 2Hl(g) H2(g) + I2(g) A. 1.42 M B. 0.753 M C. 0.240 M D.

*asked by Laura on September 18, 2016* -
## chemistry

What would be the mass of a bag of anhydrous magnesium sulfate, MgSO4, if it contained the same amount of magnesium as a 1.00kg bag of Epsom salts, MgSO4 x 7H2O? Give your answer in grams. please help

*asked by Jess on April 11, 2011* -
## Teachers Aide/Early Childhood Education and After-

11. The most common early childhood program in the United States is A. the eclectic model. C. DISTAR. B. the Montessori model. D. the Froebelian model. I have no idea. There is really only a few sentences that would lead me to believe that the Froebelian

*asked by AspiringTeacherandMotherofFour on September 28, 2010* -
## Financing and Budget

*asked by Amanda on November 12, 2014* -
## CHEM LAB

Why must you weigh the beaker containing salt and water before dissolving the salt? Why would it be incorrect/inaccurate to obtain the total mass after dissolving the salt? Explain your answer. (We had to do to create different nacl salt concentration )

*asked by lo on June 15, 2016* -
## Geometry

Kiley's in-line skate wheels have a 43-mm diameter. How many meters will Kiley travel after 5,000 revolutions of the wheels on her in-line skates? Round your answer to the nearest tenth of a meter.

*asked by Sholanda on May 16, 2012* -
## Physics

Two forces are applied simultaneously to a crate sliding in a horizontal plane: 36.8 N to the right and 20.2 N to the left. What is the net force on the crate? Let a force to the right be positive and to the left negative. Give your answer in Newtons.

*asked by Mo on November 11, 2014* -
## Physics

A block of iron at 415°C is put into a 0.625 kg tub of water at 15.0°C. They come to equilibrium at 100°C, and 0.144 kg of the water boils off to steam. What is the mass of the iron block? Please help, it keeps saying I have the wrong answer.

*asked by HELP PLEASE ASAP on June 3, 2015* -
## dividing a polynomial by a polynomial

(-6v^2 - 4 + 9v +v^3)/ (v - 4)i am just a little lost can someone explain this to me. thanks. Arrange the polonomial in descending order... v^3-6v^2 +9v -4 Then divide. v-4 !v^3-6v^2 +9v -4 The first term is v^2, so v^2*(v-4) is v^3-4v^2 subtracting that

*asked by Angel007 on August 1, 2005* -
## Physics

A uniformly charged sphere has a potential on its surface of 410 V. At a radial distance of 20 cm from this surface, the potential is 150 V. The Coulomb constant is 8.99 × 109 N · m2/C2.What is the radius of the sphere? Answer in units of m.

*asked by Mari on March 6, 2010* -
## Calculus

Calculate the population within a 6 mile radius of the city center if the radial population density is ρ(r) = 6(5+r2)1/3 (in thousands per square mile). (Use decimal notation. Give your answer to two decimal places.)

*asked by Arnold on September 11, 2017* -
## physics

A car travels 2.92 km in the x-direction, then turns left 75.8◦ to the original direction and travels an additional distance of 1.71 km. Calculate the x component of the car’s net displacement. Let: d1 =2.92km, θ = 75.8◦ , and d2 = 1.71 km . answer

*asked by hannah on September 24, 2018* -
## physics

Four vectors, each of magnitude 89 m, lie along the sides of a parallelogram. The angle between vector A and B is 77◦. A 89 m C 89 m B 89 m D 89 m What is the magnitude of the vector sum of the four vectors? Answer in units of m I got 346.8757431m, but

*asked by Jane on September 1, 2011* -
## college psych

Although it is normal to experience certain fears, when the fear becomes persistent, irrational, and seems to get in the way of every day life, that fear then becomes what? a)Biopolar Disorder b) An anxiety Disorder c) Conversion disorder d) Agoraphobie e)

*asked by Michele on December 10, 2008* -
## physics

An object moving on the x axis with a constant acceleration increases its x coordinate by 161 m in a time of 12.5 s and has a velocity of 20 m/s at the end of this time. Determine the acceleration of the object during this motion. Answer in units of m/s2.

*asked by Sam on October 3, 2011* -
## physics

The top floor of a building is 40m m above the basement. Calculate how much greater the water pressure is in the basement than on the top floor. Express your answer to two significant figures and include the appropriate units.

*asked by Phil on April 3, 2014* -
## Water Treatment

Based on the treatment scheme, what type(s) of raw water is / are being treated? Groundwater River water Riverbank filtrate Lake water Infiltrated river water please post answer

*asked by Naifaru on October 19, 2013* -
## Math

Shelly sews a blanket that has an area of 170 square feet. It has 30 square blocks, each the same size. What is the approximate length of each side of a block? A. 1 foot B. 2 feet C. 3 feet D. 4 feet Is the answer B? Thank you

*asked by Laura Ashley on November 3, 2014* -
## science

What is the momentum of a two-particle sys- tem composed of a 1300 kg car moving east at 60 m/s and a second 1500 kg car moving west at 95 m/s? Let east be the positive direction. Answer in units of kg · m/s.

*asked by ANON on March 29, 2015* -
## PROBABILITY PLEASE HELP

A tourist bureau survey showed that 80% of those who seek information about the state actually come to visit. The office received 7 request for information. What is the probability that all will visit? What is the probability that at least one will? I've

*asked by John on October 1, 2015* -
## Probability

A tourist bureau survey showed that 80% of those who seek information about the state actually come to visit. The office received 7 request for information. What is the probability that all will visit? What is the probability that at least one will? I've

*asked by Josiah on October 1, 2015* -
## Probability Of Tourism

A tourist bureau survey showed that 80% of those who seek information about the state actually come to visit. The office received 7 request for information. What is the probability that all will visit? What is the probability that at least one will? I've

*asked by Amberlynn on October 1, 2015* -
## Probability Of Tourism

*asked by Amber on October 1, 2015* -
## Language

write one word that means the same as the phrase: expressed his regret is the phrase but this is the whole sentence : The father expressed his regret for his misconduct of his son. PLEASE HELP! I have also tried to answer nearly all your questions! I have

*asked by colette on December 31, 2016* -
## Math

Can you please explain step by step on how to do each of these two problems below? And then tell me whether it involves an arithmetic sequence or a geometric sequence I also need the work shown out on both problems thank you. Perform the indicated

*asked by John on August 7, 2011* -
## Math

if a flagpole is 20ft tall and casts a shadow of 27ft how tall is a building that casts a shadow of 185ft? write a proportion and solve. round your answer to the nearest foot.

*asked by Avery on October 30, 2014* -
## English

from The Canterbury Tales: The Prologue With which of these Canterbury Tales characters does Chaucer illustrate a division between religious and scientific thought? the Narrator the Skipper the Doctor the Friar My answer is the doctor

*asked by Steve on September 17, 2017* -
## chemistry

An equilibrium constant A. is small when the products are favored in the reaction. B. is the same, regardless of the initial concentrations of reactants. C. is calculated by dividing the concentration of the reactants by the concentration of the products.

*asked by Jason on April 9, 2008* -
## Physics

A 850 kg car skidding on an icy highway at 32.5 km/h slides onto some bare pavement. If the coefficient of friction between the tires and the bare pavement is 0.200, what time(s) does it take for the car to stop? HOW do i get the answer!!!!

*asked by Brina on August 2, 2011* -
## Reaction rates

The reaction, C2H5Br --> C2H4 + HBr, has a rate constant k = 0.0000100 s-1 at 363 °C and k = 0.000479 s-1 at 427 °C. What is the rate constant for the reaction at 725 K? Round your answer to 3 significant figures.

*asked by Confused on November 20, 2010* -
## pyhsics

The top floor of a building is 40m m above the basement. Calculate how much greater the water pressure is in the basement than on the top floor. Express your answer to two significant figures and include the appropriate units.

*asked by Phil on April 3, 2014* -
## World History

What is the significance of Dred Scott v. Sandford? My answer: Dred Scott v. Sandford is significant because it effectively ended the Missouri Compromise, hardening the political rivalry between the North and the South?

*asked by Victoria on March 4, 2013* -
## Science

The rock cycle suggests that A)rocks are always added to Earth's mass. B)rocks are continuously being recycled into different forms. C)rocks disappear from Earth as they go underground. D)rocks always stay in the same form. My answer is A... is that

*asked by Channy-Boo on January 16, 2015* -
## Math

Assuming that the distribution is normal for weight relative to the ideal and 99% of the male participants scored between (–53.68, 64.64), where did 95% of the values for weight relative to the ideal lie? Round your answer to two decimal places.

*asked by Teri on March 5, 2014* -
## Chemistry

Calculate the pH of a 5.90 10-3 M solution of H2SO4 I have tried doing this as pH=-log[H+] and also by multiplying the Molarity by two because there are two hydrogens and then doing the -log but both ways have gotten me the wrong answer is there something

*asked by Ashley on March 5, 2012*

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