Robert J.

Precalculus

12/02/12

Two forces of 55N and 85N act on an object simultaneously and the resultant force is 125N. What is the measurement of the angle between the two forces?

Please help me do this problem..I am having problems with my homework?

Follows • 4

Answers •4

Pre Calculus

12/02/12

What is the value of (-2 + 2i)^8 ?

I have to remember to convert (-2 + 2i) in to polar form.

Follows • 3

Answers •2

Parallel Lines

12/02/12

which equation represents the line that contains the point (-3,14) and is parallel to the line 2x+y=5 explain

It contains the point (-3,14) and is parallel to the line 2x+y=5

Follows • 3

Answers •2

Math

12/01/12

Which value for x makes the sentence true? 1/3 (x - 6) = 2/3

Please help?!

Follows • 3

Answers •2

Chemistry

12/01/12

gas stoichiometry question

A foul smelling gas produced by the reaction of HCL and Na2S: 2HCl + Na2S --> 2NaCl + H2S is collected in and a 1.00 L sample was found. How many moles were found in the sample knowing the... more

Follows • 2

Answers •2

Algebra Question

12/01/12

Combined average

(18)/100 = 18% ; 5/(50)=10% ; why when the two numbers added together (13)/50 = 26%? I thought the answer should be anywhere between 10% to 18%?

Follows • 3

Answers •2

Algebra

12/01/12

(x-3)(x-4)=33/34

which is the number of x?

Follows • 3

Answers •2

Math Lowest Common Multiple

11/30/12

What are 3 common multiples of 7 and 21?

Idk I just needed to ask the question I don't even know what this means

Follows • 3

Answers •2

Parametric Curves Arc Length

11/30/12

arc length and parametric curves

I'm totally lost here: x= tcost y= tsint -1<or= t <or=1 find the arc length... I understand the point is to find an anti-derivative using the sqrt of each term's derivative squared and... more

Follows • 3

Answers •2

Algebra Parabolas

11/30/12

In which direction will this parabola open? x= 3(y-5)^2-7

i dont understand which way it would open! /;

Follows • 3

Answers •3

Simplifying Expressions

11/30/12

how to simplify (2x-3)^2

I need to find the equivalent to (2x-3)^2

Follows • 4

Answers •5

Factoring

11/29/12

I am not sure how to factor this problem: 128u^2v^3 - 2t^2

I know that we have to gloom for a greatest common factor and then see if there is a sum of cubes or difference of cubes but I don't get the answer correct.

Follows • 2

Answers •1

Math Algebra

11/29/12