Thursday

July 24, 2014

July 24, 2014

Total # Posts: 120

**math**

when I have (2x^(3)-18x)-(2x^(3)) / (x^(2)-9) am I suppose to be left with -18x/(x^(2)-9) or is it just 18x? Please help and thanks!

**math**

What are the critical values of f(x)=(x^(7))((x+7)^(2)) and f(x)=7x+6x^(–1)?

**math**

What are the critical numbers of f(t)=3t^(2/3)+t^(5/3)

**math**

I just meant radical for short f(x)=x(x^(2)+9)^(1/2)

**math**

what is the second derivative of f(x)=x *rad(x^(2)+9 )?

**Math - sign wrong**

The answer is still wrong :(

**Math**

The answers are wrong for this one.

**Math**

Use Newton's method to approximate a root of the equation 5sin(x)=x as follows. Let x1=2 be the initial approximation. The second approximation x2 is: and the third approximation x3 is:

**Math**

Use differential, i.e., linear approximation, to approximate (125.4^(1/3)) as follows: Let f(x)=x^(1/3) . The linear approximation to f(x) at x=125 can be written in the form y=mx+b where m is: m=1/75 b=? How do I find b?

**Math**

Consider the function f(x)=8(x^(1/2))+7 on the interval [1,5]. By the Mean Value Theorem, we know there exists a c in the open interval (1,5) such that f'(c) is equal to this mean slope. For this problem, there is only one c that works. Find it.

**Math**

f(x)=2x^(3)–1x^(2)+3x–2 Find the average slope of this function on the interval (1,7).

**calculus**

If 4x^(2)+5x+xy=4 and y(4)=-20, find y'(4) by implicit differentiation. I got y'=(-8x-5-y)/(x)

**math**

What is the time that they will meet on the 7th day?

**math**

Person 1 was walking down a path one day when Person2 appeared in front of it at exactly 8:06 AM. The next day, Person 1 was walking down the same path, and Person 2 appeared in front of it at 6:03 PM. The next day, the same thing happened at 11:05 AM. The next three days were...

**Chem!**

does the addition of a strong acid increase the percent ionization of a weak acid HB?

**Economics**

What economic policy should be adopted by regions with persistent economic problems? Why is macroeconomic policy NOT the solution?

**Chemistry**

The state of aggregation of solids can be described as belonging to the following four types: ionic, metallic, covalent network, and molecular. For each of these types of solids, indicate the kinds of particles that occupy the lattice points and identify forces among the parti...

**anatomy**

How many bones in the human body have marrow??

**AP Chem**

i always get the error analysis section of my lab wrong so i need a NON human error in an experiment involving the diffusion of gases Experiment: stick cotton ends of a Q-tip (one soaked in HCl and one in NH3) into either end of a drinking straw and measure where precipitate is

**Womens History**

A woman's rights in reagrds to spousal abuse ____________. A. varied widely depending on the colony in which she found herself living B. varied widely depending on the colony in which she was married. C.were strictly defined by federal law. D.were strictly defined by the C...