03/18/14

Derivative of a Polynomial Function
Show that there is no polynomial function that has a derivative of x^-1.
Follows • 3
Expert Answers •3

03/18/14

Derivative of a Polynomial Function
Determine equations for the tangents to the cubic function y=2x^3 -3x^2 -11x +8 at the point where y=2.
Follows • 2
Expert Answers •2

03/17/14

if x is an integer what is the solution for |2-x|=9?
Do not under stand how to work out. please help
Follows • 4
Expert Answers •4

03/17/14

son and dad clean the house in 3 hours. son takes an hour longer working alone. How long it takes him?
together they clean the house in 3 hours.  It takes the son an hour longer working by himself.  How long it takes him to clean alone?
Follows • 2
Expert Answers •1

03/17/14

z^2-14z+48=0
solution for the quadratic equation. please show steps. could it be -6,8  Thank you
Follows • 4
Expert Answers •3

03/16/14

Find the integral?
Find the integral e^(2x)/(1+e^x) dx.    Answer: e^x-ln(1+e^x)+C    
Follows • 4
Expert Answers •3

03/16/14

Select the x-coordinate of the vertex of the parabola defined by the function f(x) = -7x2 + 3x + 1.
Answers: A. -7/3 B. 1 C. 3/14 D. -3/7  
Follows • 4
Expert Answers •3

03/16/14

mixture question
hi...a chemist has a 12% acid solutions and a 24% acid solution how many liters of each should be mixed to get 16 liters of 21%..can you explain the proper equations? thanks
Follows • 2
Expert Answers •1

03/16/14

mixture question
How many liters of 15% salt solution must be added to 2 liters of 30% salt solution to yield a solution that is 18%? I am setting it up as follows..is this correct? 15% (x )liters =.15x     ... more
Follows • 3
Expert Answers •2

03/15/14

ocean and oxygen questions
1.  The upper layer of the ocean contains an abundance of microorganisms that carry out photosysthesis, such as  algae.  Why would this make the upper layer rich in oxygen?   2.  In general the... more
Follows • 3
Expert Answers •1

03/14/14

What percent of 125 is 56?
Help! What percent of 125 is 56? How do I set this equation up? Using the is over of technique?
Follows • 4
Expert Answers •5

03/12/14

Can somebody help me figure this problem out 7x + 7= 14/3
7x + 7 = 14/3 y 12 year old is having a problem figuring this problem out , I'm not sure either. Can someone help is figure this out. Thanks
Follows • 4
Expert Answers •3

03/11/14

your new cell phone plan has a monthly access fee of $28.72 with a flat rate of $0.31 per minute.if you want to keep your monthly bill under $40, how many minut
your new cell phone plan has a monthly access fee of $28.72 with a flat rate of $0.31 per minute.if you want to keep your monthly bill under $40, how many minutes per month can you talk on your new... more
Follows • 4
Expert Answers •3

03/10/14

I cant find a book that can help me understad the fundamental indentities on precalculus.
I try to look online and on my precalculus book but i still dont get it.   How do i simplify this? 1) simplify sec(theta)/csc(theta)  2) simplify 1/1+cot^2(theta)   3) simllify... more
Follows • 4
Expert Answers •3

03/10/14

how do i split sales tax on a receipt into different categories
I have two categories of spending in one receipt and need to split the total of sales tax accordingly. I need to find out what percent of the sales tax applies to each item I bought. How do I do this? more
Follows • 3
Expert Answers •2

03/09/14

Please help me with math?
If the side e of a square is increased by 1%, then the area is increased approximately    a) 0.02e b) 0.02e^2 c) 0.01e^2 d) 1% e) 0.01e    Answer: B   Please show all your work. 
Follows • 3
Expert Answers •2

03/09/14

how many liters to add 10 inches to 29.5 x 19.7 x 5 ft pool?
how many liters to add 10 inches to 29.5 x 19.7 x 5 ft pool?  
Follows • 4
Expert Answers •4

03/08/14

what is the point where the line y = 3x - 5 intecepts the y-axis is (___ , ___ ) ?
       please help solve                                              
Follows • 3
Expert Answers •2

03/08/14

word problem
one pump can drain a pool in 12 minutes. When the second pump is also uses, the pool only takes 3 minutes to drain. How long would it take the second pump to drain the pool if it were the only pump... more
Follows • 4
Expert Answers •3

03/07/14

A bacteria culture initially contains 2500 bacteria and doubles every half hour. What is the size of the baterial population after 20 minutes?
Find the size of the baterial population after 20 minutes.
Follows • 5
Expert Answers •4

03/07/14

how far must it be moved
a piece of cardboard is placed midway between two surfaces of light of equal intensity which are 12 feet apart. its plane is perpendicular to the line joining the two sources. how far must it be... more
Follows • 3
Expert Answers •2

03/06/14

May I have some help with this particular problem?
At what temperature would CO2 molecules have an rms speed equal to that of H2 molecules at 25 degrees C?
Follows • 2
Expert Answers •1

03/06/14

I neednhelp with this...
Find the half-lives of the substances 1) einsteinium-253, which decays at a rate of 3.406% per day ----------------------------------------------------------------------------- 2) You place $800... more
Follows • 4
Expert Answers •3

03/06/14

These logarithms and exponential models are a bit confusing.. could you please help me fihure these out so i knos how to do the rest ? thank you :)
Give the starting value a, the growth rate r, and the continuous growth rate k. 1) Q=5*2t/8 2) Q=40e(t-5)/12 3) Q=2-(t-5)/3
Follows • 3
Expert Answers •2

03/04/14

Jeremy bought 5 pencils for w dollars. Each pen costs 35cents more than a pencil. Write an algebraic expression for each of the following in terms of w.
i dont know how to do
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.