Mathematics - 1 November 2007

Find f(2) given f(x) = 2x^3 - x^2 - 22

[a] 30
[b] -42
[c] - 10
[d] -14

please show me how to do it
thanks :)

2007-11-01 12:59:58 · 5 answers · asked by vennysweetgirl21 3

what do i do i have a problem like this:
\5/-32
(the 5 isn't outside the square root sign)

the \ / is the square root sign.
and i read somewhere you have to use i, but she doesn't want us to. so is the answer just -2?

2007-11-01 12:54:52 · 4 answers · asked by kim 2

cot x = -3, and "x" is in Quadrant 2. How do I solve for cos (x/2)?

2007-11-01 12:52:56 · 3 answers · asked by Muffins 1

What is larger when its smaller and smaller when its larger??? HELP! I need extra credit!!!!

2007-11-01 12:52:00 · 3 answers · asked by gymgirl 1

Find the equation of the sphere with center (2,-1,-3) and satisfying the given condition:
a) Tangent to the xy-plane
b) Tangent to the xz-plane
c) Tangent to the yz-plane

2007-11-01 12:44:32 · 1 answers · asked by Anonymous

how many grams is 160 milligrams?

2007-11-01 12:36:19 · 7 answers · asked by Haley 3

2007-11-01 12:35:27 · 1 answers · asked by leo 1

2007-11-01 12:32:32 · 2 answers · asked by toodledoo4367 1

ok so were working on "factoring expressions" ..we just started this and i already forgot how to do it..can someone help remind me lol like for ex. one of the problems i have to do is 10x+40 we have to factor it..

2007-11-01 12:29:27 · 7 answers · asked by Lexi L 1

What is ...
-1/3+4/5 - 8/15

And how do you solve it?

2007-11-01 12:28:25 · 5 answers · asked by Sierra K 2

the sum of two integers is greater than 12. One integer is 10 less than twice the other. What are the least values of the integers?

Show steps!!1 Also do u need a let statement??

2007-11-01 12:26:11 · 2 answers · asked by Anonymous

2007-11-01 12:24:22 · 3 answers · asked by Anonymous

Factor the following polynomial completely.
22x5 - 154x2


Factor the following polynomial completely.
1 x^2 - 4 x + 4


Factor the following polynomial completely.
121 x**2 - 25


I've tried them numerous times and I have no idea what I'm doing wrong.... any help would be greatly appreciated....

2007-11-01 12:20:04 · 5 answers · asked by Brandon M 1

2007-11-01 12:14:22 · 5 answers · asked by Anonymous

2007-11-01 12:05:04 · 3 answers · asked by Chrisitna 1

1) d ((e^x)/(x^2))

2) d (x+ 2 sinx)

2007-11-01 12:00:40 · 1 answers · asked by Caramel 2

I'm trying to find the projection of the vector (1,1,1) onto the affine plane 2x+3y-z=12, but I am having some problems.

I know that the standard form of the vector should be written like:
1(2x-0)+1(3y-0)-1(z-0), but that's all I can figure out.

Thanks for your help.

2007-11-01 11:59:50 · 2 answers · asked by Defcon6 2

Another one. Math Ptoject due tommarrow. Please we've all been there. HELP

2007-11-01 11:59:05 · 9 answers · asked by Anonymous

2007-11-01 11:54:16 · 6 answers · asked by ramoniegirl07 1

Use differentiation to show that the sequence is monotonic and classify it as increasing or decreasing.

{arctan n} n=1 to infinity

2007-11-01 11:51:13 · 1 answers · asked by Gary 2

2007-11-01 11:42:32 · 6 answers · asked by love2bncarolina 1

Express each rate in miles per hour. 1 mi in 3 min

2007-11-01 11:39:43 · 4 answers · asked by Anonymous

like if there where two with the equal times of appearance

2007-11-01 11:39:40 · 2 answers · asked by Anonymous

At J-Mart, the ratio of televisions sold to stereos is 6:2. If the store sold 18 stereos, how many television sets were sold?

2007-11-01 11:30:16 · 10 answers · asked by amandanl95 2

This is one I made up:
Keely and Alexandra are on the swim team.They represent their school in a competition.Keely's times for the last 3 races were 6.25 minutes,6.3 minutes,and 6.23 minutes.Alexandra's times were 6.29 minutes 6.37 minutes,and 6.37 minutes.On average,how much faster was keely's time?
How did you get the answer?

2007-11-01 11:28:46 · 2 answers · asked by Anonymous

2007-11-01 11:26:53 · 7 answers · asked by LOVELY 1

is this statement true? if its not, why not?

"every square is a rectangle"

2007-11-01 11:23:45 · 8 answers · asked by Anonymous

A cue stick hit a cue an average force of 23N for a duration of 0.028 s.If the mass of the ball is 0.16 kg, how fast is it moving after being struck?

2007-11-01 11:22:40 · 3 answers · asked by Anonymous

Use 2, 3, 4, and 7, to write an equation that equals 12. the #s can be in any order but the Order of Operations must be observed.

2007-11-01 11:20:51 · 6 answers · asked by Anonymous

I need help in my geometry homework and I can't figure out it PLEASE HELP!!

2007-11-01 11:07:26 · 8 answers · asked by Anonymous