Mathematics - 1 August 2007

2007-08-01 22:34:11 · 3 answers · asked by Anonymous

2007-08-01 22:18:54 · 2 answers · asked by maya 1

cubed squareroot of 81 divided by 3(1/3)

2007-08-01 21:06:26 · 5 answers · asked by Anonymous

Im trying to get this practice quiz thing to get me ready for this placement this for CSU. Test is coming REAL SOON. And trying to practice as much as I can. The test is Mathematics Placement Test if anyone was interested for Engineering majors.

Here are a few I got stuck on


NOTE- < and > are all underlined, i just didnt know how to put it.
1. |x-2| < 9 is equivalent to which one?
a. -11 < x < 11
b. -7 < x < 11
c. -11 < x < 7
d. x < -7
e. x > 11

Please show steps to this one. Just not letter answer.


2. (2x-1)(x+4) / x-3 = 0 x= ???

3. If f(x) = sin (3x) then f(pie/6) = ???

4. What is the area of this triange? ( link to picture)
http://img380.imageshack.us/img380/1809/1f14ev8.gif
I think it was 0.3

2007-08-01 21:06:16 · 4 answers · asked by Keshawn 1

2007-08-01 21:06:12 · 23 answers · asked by Anonymous

Tan-1 - inverse tan
Solve for A?

2007-08-01 20:59:19 · 4 answers · asked by taelorcorey00 1

2007-08-01 20:52:33 · 19 answers · asked by Anonymous

Reduce the equation to standard from, give the coordinates of the vertex, focus, ends of the latus rectum and find the equation of the directrix. I got this wrong in my test yesterday. I'm so careless. Please as much as possible do it step by step to prevent vagueness.


36y^2+72x-132y-239=0

2007-08-01 20:42:15 · 2 answers · asked by Patricia 2

2007-08-01 20:15:24 · 7 answers · asked by paavni 2

2007-08-01 19:59:14 · 6 answers · asked by paavni 2

how do u multiply .72 * .34 please show all steps WITHOUT calculator. as well as 8/114

2007-08-01 19:48:50 · 4 answers · asked by Anonymous

I think you substitue it into the a, but adding 3 into the a number being divide has me thrown off.

2007-08-01 19:40:53 · 6 answers · asked by Keshawn 1

I took Precalculus (college) in the spring semester. The teacher mostly taught advanced algebraic equations and went over functions. She didn't cover SIN, COS, TAN at all.

Are these required in an AP Calculus class? Should I get some type of prep-book before I take the class?

Any help would be appreciated. I'm nervous about taking this class. I have a 4.0 up until now and would hate to lose it in this class.

2007-08-01 19:32:55 · 4 answers · asked by anicoleslaw 5

is it 5 to the power 7/4

2007-08-01 19:25:47 · 9 answers · asked by paavni 2

I know this is easy...I'm forgetting simple algebra here. Can you please help and tell me what the formula is?

2007-08-01 19:21:16 · 8 answers · asked by nimzaj1969 2

I need to refresh my algebra skills, thanks

2007-08-01 19:16:55 · 1 answers · asked by c44w 3

F is a vector field, f is a scalar field

One of the definitions given: ( f F) (x,y,z) = f(x,y,z)F(x,y,z)

So I have to prove these:

curl(fF) = fcurlF + (del f) x F

and

curl(curlF) = grad(divF) - del^2 F

Thanks.

2007-08-01 19:10:02 · 2 answers · asked by jpaomp 2

log3(x+9)=4 x= ?

note- 3 is down at the bottom

Studying for MPE for csu test. How do I solve this without caculator. I dont think I need law of logs but I understand the law of logs, so ya. Been sitting the whole summer doing no math. Forgot alot.

2007-08-01 19:03:08 · 9 answers · asked by Keshawn 1

Integrate the following indefinite integral:

(sin7x)^12 * (cos7x)^3

Hint: sin^2 + cos^2 = 1

2007-08-01 19:00:04 · 5 answers · asked by Anonymous

Factor this trinomial using the ac method.

2007-08-01 18:25:10 · 8 answers · asked by Anonymous

A triangular sail has an area of x^2 + 5x + 6 square meters and a height of x + 3 meters. Find the length of the sail's base.

2007-08-01 18:19:11 · 4 answers · asked by Anonymous

factoe the polynomial completely

2007-08-01 18:16:33 · 4 answers · asked by Anonymous

factor each polynomial, state if the polynomial is prime

2007-08-01 18:11:39 · 6 answers · asked by Anonymous

Use grouping to factor the polynomial completely

2007-08-01 18:00:59 · 11 answers · asked by Anonymous

2007-08-01 17:57:07 · 4 answers · asked by maya 1

factor the polynomial

2007-08-01 17:54:59 · 8 answers · asked by Anonymous

2007-08-01 17:51:32 · 4 answers · asked by almira 1

2007-08-01 17:49:46 · 12 answers · asked by hot_leo 1

A cylindrical tank is on the ground (lying on its side), is only half full of water, and has a radius of 1ft and length 5ft. The cylindrical tank has a pipe coming out of the side of the tank (so it is pointing upwards because the tank is on the ground on its side). The spout that points straight upwards is 1.5ft high (so total distance from ground to top of spout is 2r + 1.5ft = 3.5ft). Set up the integral to find out how much work needs to be done to pump the water out of the outlet to the top... water density is 62.5lb/ft^3 ). Do not evaluate integral.

so far I have:

(∫) from 0→1 [(10[1-√(1-x²)])(3.5-x)(62.5)]dx

and the variable x is the the distance from the ground at point 0→x, which points upwards...

2007-08-01 17:46:05 · 1 answers · asked by Anonymous

Factor out the GCF in the expression

2007-08-01 17:43:59 · 5 answers · asked by Anonymous