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

143,010 questions, page 726
1. math

Boris gets paid an 8% commission on every car he sells. Last week, he made a commission of \$1240. What was the price of the car he sold? a)15500 b)15000 c)12500 d)1550 I got answer a by dividing 1240 by .08. Is this right?

asked by robert on January 31, 2008
2. Physics-Graivty

Suppose planet earth suddenly grew in size, so that its radius was twice as large as before. Also suppose that at the same time, its mass also doubled to twice its former mass. If you weight used to be 700 N, what is it on this "new" Earth. Describe why

asked by Anonymous on April 2, 2017
3. Statistics

sd 20 mean 100 x 125 looking at table z-0.8944 do we put a 1 in front and substract it from 0.8944 to make it .1056 or is the answer just the number the table indicates? In other words does the problem finish after you get the z number or do we continue by

asked by interestedhey on March 15, 2012
4. Geography (Ms. Sue)

What are some of the advantages of tourism to the Caribbean? My answer: Some of the advantages of tourism to the Caribbean include the receiving of money into the region, the employment of local people, and the reduce of the income gap between the poor and

asked by Anonymous on September 20, 2013
5. Grammar

Question: When two words act as a single modifier, or adjective, for a noun, this is called a/an ________. a. compound modifier b. coordinating conjunction c. adverb modifier d. prepositional phrase ANSWER: a. compound modifier

asked by Leslie-To:Writeacher on July 4, 2011
6. PHYSICS

what's the differencces between the meaning of measurement and value of measurement in physics??? The meaning of measurement is a definition of whatever is being measured. I suggest you use a dictionary for that. The answer will depend upon what you are

asked by Katrina on September 23, 2006
7. physics

A car traveling at 90 km/h strikes a tree. The front end of the car compresses and the driver comes to rest after traveling 0.72 m. What was the average acceleration of the driver during the collision? Express the answer in terms of "g's," where 1.00g =

asked by sam on October 13, 2010
8. chem

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 kellie on October 17, 2010
9. math

the sex of to domain species is unknown but they each have a probabilty of X and -5 what does x equal and waht is the domain species? Plz someone help me dont give me the answer just plz explain the procees of theis to me i have no clue where ot start

asked by carry on on February 22, 2017
10. Physics

A small object, which has a charge q = 6.7 µC and mass m = 9.60 10-5 kg, is placed in a constant electric field. Starting from rest, the object accelerates to a speed of 2.06 103 m/s in a time of 1.03 s. Determine the magnitude of the electric field.

asked by Jasmine on January 28, 2013
11. english

Analyzing English sentence structures is important for an EFL teacher because A: these structures are not universal. B: second language learners usually search for these patterns. C: understanding these patterns helps a teacher elucidate them. D: All of

asked by Althea on July 28, 2017
12. Science

fus = 12.5 and vap = 93.2 both j/k x mol Determine the entropy change when 7.30 mol of HCL(g) condenses at atmospheric pressure. my first answer was -91.3 but it keeps telling me that is incorrect and that delta Svap if scaled at 1.00 mol but needs to be

asked by Talaya on March 14, 2015
13. College Math - Quantitative Reasoning

Hello, I could really use some help with this problem. If the national economy shrank at an annual rate of 7​% per year for three consecutive​ years, then the economy shrank by 21​% over the three​-year period. - Of course, I understand 7% would be

asked by Emily on January 16, 2017
14. trigonometry

A wheel with a 21-inch diameter is turning at the rate of 58 revolutions per minute. To the nearest inch, what is the velocity of a point on the rim in inches/minutes? 3879 inches/minutes is my answer correct??

asked by y912f on January 17, 2009
15. Science

What is the percent yield of copper when 14.0g of Cu2O reacts with Cu2S and 12.3 grams of copper is recovered? Round to two decimal places and do not use a percent sign in your answer. 2Cu2O + Cu2S → 6Cu + SO2

asked by Mista on March 5, 2019
16. Physics

While following the directions on a treasure map, a pirate walks 24.3 m north, then turns and walks 4.3 m east. What is the magnitude of the single straight-line displacement that the pirate could have taken to reach the treasure? Answer in units of m

asked by Bay on November 1, 2011
17. Physics...

While following the directions on a treasure map, a pirate walks 23.5 m north, then turns and walks 2.7 m east. What is the magnitude of the single straight-line displacement that the pirate could have taken to reach the treasure? Answer in units of m

asked by Jacqueline on December 2, 2012
18. math(urgent)

\$1000 was invested for two years at 10% simple interest .calculate the effective rate was earned. pls check my solve (1+0.1/2)^2-1 = 0.1025 but the true answer is 9.54% pls help me to get the formula of effective rate

asked by fizz on May 16, 2014
19. Science

Which of the following safety measures should you observe when there is lightning. Stay away from objects made of plastic. Stay away from metals and other objects that conduct electricity. (MY ANSWER) Stay near open windows. Stay on the roof of your house.

asked by LOVE on January 28, 2016
20. Chemistry

In the explosion of a hydrogen-filled balloon, 0.80g of hydrogen reacted with 6.4g of oxygen. How many grams of water vapor are formed? (Water vapor is the only product.) Express your answer using two significant figures.

asked by Anonymous on September 7, 2013
21. chemistry

Iodine(I2)is a solid molecular compound at room temperature. Predict its solubility in liquid water(H2O)and in liquid cyclohexane(C6H12) at room temperature respectively and provide explain for your answer.

asked by Nam Le on December 14, 2014
22. algebra

Use the five steps for problem solving to answer the following question. Please show all of your work. The volume of a rectangular slab of concrete needs to exceed 72 cu. ft. If the length is 12 feet and the width is 8 feet, how thick does the concrete

asked by Anonymous on March 17, 2011
23. chemistry

Assuming an efficiency of 30.80%, calculate the actual yield of magnesium nitrate formed from 147.4 g of magnesium and excess copper(II) nitrate. Mg+Cu(NO3)2=Mg(NO3)2+Cu is anyone able to solve this? ive gotten the answer wrong twice

asked by skye on June 14, 2019
24. Math

Suppose a person were to breath an average of 16 times per minute. How many years would it take for them to breath one billion times? Assume there are 365 days in one year. Round your answer to the nearest single year.

asked by Mel on April 24, 2017
25. PHYSICS CIRCULAR MOTION GRAVITATIONAL CONSTANT

Three masses are arranged in an (x, y) plane. 7 kg (-3,1) 8 kg (0,0) 9 kg (1,2) a) What is the magnitude of the resulting force on the 8 kg mass at the origin? The universal gravitational constant is 6.6726 × 10^−11 N · m^2/kg^2. Answer in units of N.

asked by Jaylee on November 14, 2010
26. physics

i'm still getting C as the answer to this one drwl said its wrong When a positive charge moves in the direction of the electrical field, what happens to the electrical potential energy associated with the charge? a. increase b. decreases c. remains the

asked by physics on March 12, 2009
27. physics1

What is the magnitude of your total displacement if you have traveled due west with a speed of 23 m/s for 125 s , then due south at 12 m/s for 255 s ? Express your answer using two significant figures. What is the direction of your total displacement in

asked by anonymous on February 20, 2017
28. math

A mason's assistant's rate of pay is \$0.75 per cubic foot of earth moved. He moves 220 cubic feet of earth to dig a trench. What is his pay for this job? THE ANSWER IS NOT &330

asked by Stacey on June 17, 2013
29. Social studies

Why did Pope Urban II call for christians to go on a Crusade? To win back the Roman empire. To win back the holy land. (MY ANSWER) To conquer the Byzantines. To conquer the Muslims in Spain.

asked by LOVE on February 23, 2016
30. chem

Citric acid, the compound responsible for the sour taste of lemons, has the following elemental composition: C, 37.51%; H, 4.20%; O, 58.29%. Calculate the empirical formula of citric acid. (Type your answer using the format CO2 for CO2.) thanks

asked by hannah on November 14, 2010
31. chemistry problem

A carbon nucleus has six protons and six neutrons. How many electrons would it take to equal the mass of a carbon nucleus? ok. i think theres some type of formula or some trick to figure this one out but i don't know what it is. If you guys know how to

asked by Sarah on September 20, 2010
32. college algebra

A rock is thrown upward with a velocity of 20 meters per second from the top of a 37 meter high cliff, and it misses the cliff on the way back down. When will the rock be 4 meters from the water, below? Round your answer to two decimal places.

asked by sharena on February 13, 2017
33. college algebra

A rock is thrown upward with a velocity of 20 meters per second from the top of a 37 meter high cliff, and it misses the cliff on the way back down. When will the rock be 44 meters from the water, below? Round your answer to two decimal places.

asked by sharena on February 13, 2017
34. Statistics

test the claim that μ1 = μ2 Two samples are randomly selected from normal populations. The sample statistics are n1=11,x(bar)=4.8, s1=.76 n2=18, x(bar)=5.2, s2=.51 Assume that σ1 ≠ σ2 Use alpha = .02 I am not sure if this is a 2-sample t test or do I

asked by Jen on August 20, 2009
35. Physics

(time given is the total time in the air) During a baseball game, a batter hits a high pop-up. If the ball remains in the air for 4.5 s, how high does it rise? The acceleration of gravity is 9.8 m/s^2. Answer in units of m

asked by Vanessa on September 21, 2011
36. physics

While following the directions on a treasure map, a pirate walks 37.8 m north, then turns and walks 5.2 m east. What is the magnitude of the single straight-line displacement that the pirate could have taken to reach the treasure? Answer in units of m.

asked by Anonymous on October 1, 2015
37. English

Hello. I'll be very grateful for your help. 1)Is it possible to say "I'll answer your question if you are insisting" or is it "if you insist"? 2)Is the sentence correct "By the time you come, the letter will be ready" or is it "when you come"? 3)Which

asked by Ilma on February 2, 2012
38. physics

A mass of 2.6 kg lies on a frictionless table, pulled by another mass of 4.7 kg under the influence of Earth’s gravity. The acceleration of gravity is 9.8 m/s2 .If the acceleration of the object has a magni- tude of 3.5 m/s2, what is the angle θ between

asked by Natalie on October 12, 2012
39. algebra

a rock is thrown witha velocity of 20 meters per second from the top of a 24 meter high cliff and it misses the cliff on the way back down. when will the rock be 10 meters from the water below? round your answer to two decimal places

asked by Anonymous on March 12, 2013
40. Physics

What is the final equilibrium temperature when 7 g of milk at 5C is added to 117 g of coffee at 68C? Assume the specific heats of milk and coffee are the same as that of water, and neglect the specific heat of the container. Answer in units of C

asked by Ted on March 13, 2013
41. research writing as a process

Which of the following is a goal you may want to accomplishin a research project? to formulate a thesis statement to think about the purpose of the research project. to pick something you wrote a paper on last year and just correct the errors to analyze my

asked by Christopher on April 28, 2010
42. stat

You take a trip by air that involves three independent flights. If there is an 72 percent chance each specific leg of the trip is on time, what is the probability all three flights arrive on time? (Round your answer to 3 decimal places.)

asked by ashley on February 26, 2016
43. Algebra

Joe can drive from his house to his office in 40 minutes at an average speed of 40 miles per hour. What average is needed to drive the same distance in half an hour? If necessary, round your answer to the nearest tenth.

asked by Ann on December 5, 2012
44. Physics again

The following question refers to the following expression for a particle's position: X = 3t^2 - 4t + 3 What is the particle's acceleration after 3 seconds? I keep getting 1 m/s2 but that's not an answer choice. I found instantaneous velocity at t=0 (3 m/s)

asked by anonymous on September 19, 2018
45. math

A stone is tossed vertically into the air from ground level with an initial velocity of 15 m/s. Its height at time t is h(t)=15t-4.9t^2. Compute the stone's average velocity over the time interval [0.5, 2.5]. It says the answer is .3, but I keep getting

asked by terra on September 5, 2011
46. Science Help!

Which sequence of processes must occur for an atom of carbon to go from a human to a car? A. Respiration, photosynthesis, decompiosition B. Fossilization, decomposition, respiration C. Photosynthesis, combustion, respiration D. Respiration, fossilzation,

asked by Callie on November 14, 2014
47. Chemistry

My questions keep getting cut off. What am I doing wrong? Here is my question again. Thanks for the help. What is the empirical formula for a compound whose molecular formula is C2Cl6? a) CCl3 b) CCl4 c) C2Cl6 d)CCl e) more info needed I think the answer

asked by Mattt K on October 25, 2009
48. Calculus

Two ships leave the same port at noon. Ship A sails north at 22 mph, and ship B sails east at 12 mph. How fast is the distance between them changing at 1 p.m.? (Round your answer to one decimal place.)

asked by Ali on October 10, 2012
49. chemistry

Ammonia chemically reacts with oxygen gas to produce nitric oxide and water . What mass of ammonia is consumed by the reaction of 4.5g of oxygen gas? Round your answer to significant digits.

asked by Anonymous on September 27, 2011
50. Chemistry

How many grams of nitrogen are required to react with 2.79g of hydrogen to produce ammonia? A) 25.8 g B) 13.0 g C) 78.2 g D) 38.7 g E) 77.4 g I get the answer as 38.7 but it is meant to be B I did 2.79g x 3molH2/2.016g/mol x 1molN2/3molH2 x

asked by Anonymous on May 8, 2014
51. math-matrix equations

I have a problem with the following homework question: Which product represents the solution to the system: -y + 7x=14 -x + 4y=1 a. | (1/27) (4/27)| | (7/27) (1/27)| b. | (-7/3) (4/3) | | (-1/3) (1/3) | c. | (7/3) (-4/3) | | (1/3) (-1/3) | d. | (-1/27)

asked by Jennifer on May 2, 2008
52. PHYSICS

While following the directions on a treasure map, a pirate walks 25.2 m north, then turns and walks 4.4 m east. What is the magnitude of the single straight-line displacement that the pirate could have taken to reach the treasure? Answer in units of m.

asked by Crystal on September 15, 2015
53. Physics

(time given is the total time in the air) During a baseball game, a batter hits a high pop-up. If the ball remains in the air for 4.5 s, how high does it rise? The acceleration of gravity is 9.8 m/s^2. Answer in units of m

asked by Vanessa on September 21, 2011
54. Physics

A car traveling at 86 km/h strikes a tree. The front end of the car compresses and the driver comes to rest after traveling 0.86 m. What was the average acceleration of the driver during the collision? Express the answer in terms of "g's," where 1.00g =

55. physics

The following question refers to the following expression for a particle's position: X = 3t^2 - 4t + 3 What is the particle's acceleration after 3 seconds? I keep getting 1 m/s2 but that's not an answer choice. I found instantaneous velocity at t=0 (3 m/s)

asked by anonymous on September 20, 2018
56. physics

A(n) 3.91 kg sphere makes a perfectly inelastic collision with a second sphere that is initially at rest. The composite system moves with a speed equal to one-third the original speed of the 3.91 kg sphere. What is the mass of the second sphere? Answer in

asked by david on January 30, 2012
57. Intermediate Algebra

If a 9-foot tall adult elephant casts an 18-foot shadow, how long is the shadow of the 6-foot zookeeper? Use a proportion to set up and solve an equation. Round your answer to the nearest tenth of a foot if necessary.

asked by Dora on July 12, 2015

Sam serves a tennis ball at a speed of 90 miles per hour. If 0.62 mile is equivalent to 1 kilometer, what is Sam's serve speed in kilometers per hour? Round your answer to the nearest hundredth.

asked by Mikey on May 2, 2016
59. English

Question 8 5 points Save Use quotation marks when you introduce what sort of information? a speaker’s name as well as what the speaker says familiar material titles of your essays definitions of words my answer familiar material

asked by christopher on April 27, 2010
60. physics

A ball of mass 21.7 g is attached to a cord of length 0.61 m and rotates in a vertical circle. What is the minimum speed the ball must have at the top of the circle so the cord does not become slack? The acceleration of gravity is 9.8 m/s . Answer in units

asked by d on January 24, 2015
61. physics

Marks: 2 The magnetic field of a circular loop of wire changes from 0.3 Tesla to 0.4 Tesla in 0.2 seconds. What is the induced emf produced in a coil if the area of the circular loop is 1m2? Choose one answer. a. 0.1 V b. 0.2 V c. 0.5 V d. 0.6 V

asked by unknown on June 9, 2011
62. physics

Water drops over 49 m high Niagara Falls at the rate of 6.0 106 kg/s. If all the energy of the falling water could be harnessed by a hydroelectric power plant, what would be the plant's power output? it says they want the answer in terms of GW

asked by Anonymous on February 19, 2011

the ability to cause changes in matter is a result of the following____________ A.mass B.energy C.force D.inertia Melting is a change in matter. Which answer could cause melting? i do not know hey im sorry to ask u this but what? Think. State your

asked by hot stuff on April 17, 2007
64. Algebra

A rock is thrown upward with a velocity of 15 meters per second from the top of a 49 meter high cliff, and it misses the cliff on the way back down. When will the rock be 3 meters from the water, below? Round your answer to two decimal places.

asked by pam on August 29, 2015
65. Calculus

The table below shows the temperature (in °F) t hours after midnight in Phoenix on March 15. The table shows values of this function recorded every two hours. (10 points) a. Estimate the value of T'(6). Give units in your answer. b. What is the meaning of

asked by Tom on May 15, 2015
66. physics

(time given is the total time in the air, up and down) During a baseball game, a batter hits a high pop-up. If the ball remains in the air for 4.84 s, how high does it rise? The acceleration of gravity is 9.8 m/s2 . Answer in units of m

asked by mary on September 29, 2013
67. Calculus

Two ships leave the same port at noon. Ship A sails north at 12 mph, and ship B sails east at 19 mph. How fast is the distance between them changing at 1 p.m.? (Round your answer to one decimal place.)

asked by Chuck on May 28, 2016
68. physics

(time given is the total time in the air, up and down) During a baseball game, a batter hits a high pop-up. If the ball remains in the air for 4.84 s, how high does it rise? The acceleration of gravity is 9.8 m/s2 . Answer in units of m

asked by mary on September 29, 2013
69. Math

Determine the zeros of the function 3x^2 -8=10x. I know I rewrite it as 3x^2 -10x-8 = 0 But then what do I do-I'm totally confused-Answers are {-2,4} {2,4} {-2/3,4} {2/3,4} Please direct me or show the steps, just don't give me the answer because I still

asked by Beth Anne on September 28, 2010
70. MATH HELP ASAP

Two stores carry a similar stereo for the same original price of \$573. One store offers a 16% discount and the second sells the stereo for \$458.40. Which store gives the bigger percent discount? Justify your answer.

asked by Cute Kawaii Girl on March 25, 2018
71. English Comp

14. The first step in conducting a survey is to A. determine the target sample. B. determine whether to use closed or open questions. C. test sample questions on friends or family members. D. clarify its purpose. My answer is D.

asked by LunarBerry on May 10, 2019
72. Phys 2425

Two parallel wires, separated by the distance of 2 cm, carry the currents I1 = 1 A and I2 = 2 A in the same direction. How far from the wire carrying the current I1 is the magnetic field zero? I am wondering if the answer might be that it can never equal

asked by A on March 18, 2016

I came up with 4.80 per share for the question. A mutual fund has total assets of \$57,000,000 and liablities of \$8,550,000. If \$15,960,000 shares outstanding, what is the net asset value of the fund? Please check my answer.

asked by Terry on January 20, 2012
74. Algebra

a rock is thrown upward with a velocity of 20 meters per second from the top of a 40 meter high cliff, and it misses the cliff on the way back down. when will the rock be 7 meters from the water, below? round your answer to two decimal places

asked by Anonymous on January 26, 2014
75. physics

(time given is the total time in the air, up and down) During a baseball game, a batter hits a high pop-up. If the ball remains in the air for 4.84 s, how high does it rise? The acceleration of gravity is 9.8 m/s2 . Answer in units of m

asked by mary on September 29, 2013
76. Math

In math class, Sam correctly multiplied 3.625 × 10 with the exponent of -8 by 500, then reported his product in scientific notation. What was the exponent in Sam’s product? a.-16 b.-10 c.-7 D.-5 I think the answer is B. Please correct me if I am wrong,

asked by Bonny the Horse on November 9, 2018
77. physics

A car traveling at 90 km/h strikes a tree. The front end of the car compresses and the driver comes to rest after traveling 0.87 m. What was the average acceleration of the driver during the collision? Express the answer in terms of "g's," where 1.00g =

asked by Anonymous on September 14, 2011
78. math

A runner and a walker depart from the same point going in opposite directions on a circular track that is 1 mile long. The runner travels at 9 mph and the walker at 3 mph. After how many minutes will they pass each other? I know the answer is 5 but I don't

asked by Morgan on November 5, 2015
79. child development part 2

school age children a.are just bigger preschoolers b.require a classroom like setting for before and after school care c.have needs that are qualitatively different from those of younger children d.spend more time in child care than infants my answer is c

asked by susue on February 4, 2015
80. Science

Occasionally a planet will pass directly between Earth and the face of the sun. WHich planets could do this and why? How many complete orbits has Earth make in your lifetime? How many orbits has Mars made in your lifetime? *I have no idea the answer to

asked by Delaney on April 19, 2009
81. Grammar

Question: When two words act as a single modifier, or adjective, for a noun, this is called a/an ________. a. compound modifier b. coordinating conjunction c. adverb modifier d. prepositional phrase ANSWER: a. compound modifier

asked by Leslie-To:Writeacher on July 3, 2011
82. Psychology

1. You are conducting research on sex differences in e-mails. Your hypothesis is that men use more declarative statements and women use more questions. Answer each of the following questions. • What might be the advantages of using the archival method?

asked by Shauntae on May 7, 2011
83. math

I have a question about the formula for this problem:How many ways can an IRS auditor select 3 of 11 tax returns for an audit? I know that it is 11! / 3!(11-3)! But apparently I am doing something wrong because my answer is not one of my choices. Am I

asked by sam on September 23, 2009
84. Calculus

he table below shows the temperature (in °F) t hours after midnight in Phoenix on March 15. The table shows values of this function recorded every two hours. (10 points) a. Estimate the value of T'(8). Give units in your answer. b. What is the meaning of

asked by Student on December 8, 2017
85. Physics - Scott help!

1. A block of mass 57.1 kg rests on a slope having an angle of elevation of 28.3°. If pushing downhill on the block with a force just exceeding 162 N and parallel to the slope is sufficient to cause the block to start moving, find the coefficient of

asked by Cameron on October 3, 2018
86. Physics

1. A block of mass 57.1 kg rests on a slope having an angle of elevation of 28.3°. If pushing downhill on the block with a force just exceeding 162 N and parallel to the slope is sufficient to cause the block to start moving, find the coefficient of

asked by Cameron on October 3, 2018

Problem 4.4- Suppose n o and n e are given. In (a) you only need to find the magnitude of the group velocity. Problem #2 in HW 10 may be helpful. You can also directly use the definition of group velocity, i.e., v g = triangle k w (k), taking into account

asked by Joy on November 13, 2013
88. Partial Differential Equations

Problem 4.4- Suppose n o and n e are given. In (a) you only need to find the magnitude of the group velocity. Problem #2 in HW 10 may be helpful. You can also directly use the definition of group velocity, i.e., v g = triangle k w (k), taking into account

asked by Joy on November 12, 2013
89. Math

In 2002 there were more than 30,000 McDonald’s restaurants in the world. Of these, approximately 14,000 were in the United States. In Great Britain there were 1,116 McDonald’s franchises. The following data are taken from those 1,116 McDonald’s.

asked by Happy on December 11, 2008
90. arithmetic

In 2002 there were more than 30,000 McDonald’s restaurants in the world. Of these, approximately 14,000 were in the United States. In Great Britain there were 1,116 McDonald’s franchises. The following data are taken from those 1,116 McDonald’s.

asked by fay1985 on December 12, 2008
91. physics

Romeo is tossing pebbles at Juliet's window and wants the pebbles to hit the window gently, with only a horizontal component to their velocity, as they hit the window. He is standing at the edge of a rose garden 4.5m below her window and 5.0m from the base

asked by Cristina on October 6, 2010
92. math HELP!!!!!!

Suppose 10% of the flights arriving at an airport arrive early, 60% arrive on time, and 30% arrive late. Valerie used the random-number table to find the experimental probability that of 5 flights, at least 2 will arrive late. The digit 0 represents

asked by Anonymous on June 2, 2014
93. Math 111 (College Algebra)

Rational number or irrational? And why? I have been challenged in my college algebra class to determine whether or not .12122122212222122221222221... (continuing forever)is a rational number or not. I need to prove one way or the other. I am lost! :-( I

asked by Eleonora on September 8, 2009
94. chemistry

If 890 mL of 0.236 M aqueous NaI and 0.560 mol of liquid Br2 are reacted stoichiometrically according to the? If 890 mL of 0.236 M aqueous NaI and 0.560 mol of liquid Br2 are reacted stoichiometrically according to the balanced equation, how many moles of

asked by Judy on June 6, 2010
95. environmental science

Ecologists designed an experiment to determine if nitrates or phosphates are more limiting to algae growth. They divided a lake in Canada into two equal-sized sections by a vinyl curtain. Then they fertilized each sub-basin of the lake, one with nitrates

asked by jj on October 12, 2016
96. Physics

A horse is harnessed to a sled having a mass of 231 kg, including supplies. The horse must exert a force exceeding 1250 N at an angle of 36.3° (above the horizontal) in order to get the sled moving. Treat the sled as a point particle. HINT - Use the

asked by Doug on October 2, 2018
97. History

1.)Who increased communication throughout the United States by inventing the telegraph? A.)Elijah McCoy B.)Samuel Morse*** C.)Isaac Singer D.)Eli Whitney 2.)Which of these 19th century inventions made the production of clothing more efficient? A.)Cotton

asked by #FreeGucci on February 25, 2016
98. calculus

find the complex zeros of the polynomial function. write f in factored form. f(x)=x^3-10x^2+42x-72 please show work.