Mathematics

9th grade math help please!

Which set of length measurements below could NOT be the lengths of the three sides of a right triangle? A. 11, 17, 19 B. 14, 48, 50 C. 18, 80, 82 D. 33, 44, 55-First set is A. Under Additional Detail

Express as a single logarithm and if possible simplify

Log4 9-log4 z-Log4 9-log4 z = log4 [9/z] answer

HELP with this inequality please??? :\

5/x-9 This one is a little bit too complicated for me so if anyone could explain it please?-Did you mean 5/(x-9) If so get zero on one side, then get a common denominator. 5/(x-9)-9/(8x-7) [5(8x-7)-

Trigonometry Question (need answer fast)

Im studying for a big test. First answer that makes perfect sense will get the 10 points. Find the exact value of the trigonometric function given that sin u = 5/13 and cos v = -3/5. (Both u and v ar

Factorials/Permutations question

Go to the link to view the question http://i56.tinypic.com/2s0cqow.png-http://answers.yahoo.com/question/index?…

Maths cubic meters help

Okay this is kinda hard to explain with text so Ive taken the initiative and drawn paint pictures. My objective is to work out the amount of concrete (in cubic meters) of these two skate parts and t

If P(x) = x + ax + 3x – 5 has a remainder of –3 when divided by x – 2 find the value of a.

P(x) = x + ax + 3x – 5 given P(x) = -3x-2 = > x=2 -3 = 2 + 2a + 3(2) - 5 -3 = 2 + 2a + 6 - 5 -3 = 3 + 2a -3 -3 = 2a-6 = 2aa= -3 answer// therefore: P(x) = x -3x +3x - 5 answer//-P(2) = 2 + 2a +

Simulatenous Equation PLEASE BEGGING HELP!

1) y=x^3 and y=x^2 +6x The answer is x=0, y=0 and x=-2, y=-8 and x=3, y=27 How do u solve?-you start by making both values for y equal to each other, because 1y is x^3, but also x^2 + 6 so you get:

What is a love triangle with four people

A love square. Example: Bob and John are male, Tracy and Julia are female. Bob loves Julia, Julia loves John, John loves Tracy, Tracy loves Bob. I believe this would be a four way love triangle, but

How do you find out the roots of a parabola

On a TI83 calculator.-Hello Shane, I will list the steps on how to find the roots, also known as the Vertex. Step 1 --> Go To Y= Step 2 --> Type in the equation(s) Step 3 --> Click graph, than go to

Use f(x)=3x-2 and g(x)=3+2x^2 to evaluate the expression (fog)(2)

very confused, please help!-In f(x), put g(x) in for xThen the x thats in g(x) that u put in f(x), make it 2. 3(3+2(2)^2)-2.=.3(11)-2 = 31-fog(2) = f( g(2) ) = f( 11 ) = 31

Factor completely:5(x-1)^4+3(x-1)^2

please show steps! Thanks!-5(x-1)^4 + 3(x-1)^2 = (x-1)^2 [ 5(x-1)^2 + 3 ] = (x-1)^2 [ 5(x^2 -2x +1) + 3 ] = (x-1)^2 (5x^2 -10x +8)-( x-1)^2 ( 5(x-1)^2 + 3) ( x-1)^2 ( 5x^2-10x +8)ANSWER-(x-1)^2 is HC

Problem solving pls help

Jack usually mows his lawn in 6 hours. Marilyn can mow the same yard in 3 hours. How much time would it take for them to mow the lawn together? pls show work? thanks!-Jack= 1/2 Marilyn Marilyn = 2 Jac

How many calories in 5lbs

I know 1lb=3,500. so how much in 5, 10, and 20?-Since you already know that 1lb=3,500 calories, you just have to multiply the calories by how many pounds you are looking for. For 5lbs, you take: 5lbs

Principal Ideal Question

Why is the ideal not principal in Z[X] Thanks-There is a great explanation of wiki as the guys before said, explains it clearly! Good luck-http://en.wikipedia.org/wiki/Principal_i…