Mathematics

9TH GRADE ALGEBRA HELP!! INDEPENDENT VARIABLES AND SLOPE HELP PLEASEEE ASAP!

9th grade algebra problem is realllly hard, please help!! its about independent variables and slope HELP ASAP!? here is the problem http://tinypic.com/r/2wpqo8p/7 its problem #1 i understand how to

Why is it that any number raised to the power of zero is always one and not zero.

look at 2^2=4 2^3=8 the pattern is that you multiply by 2 each time well 2^1=2 divide by two to get 2^0 so 2/2=1-By the way , it is NOT ANY number.....It is any number EXCEPT 0 raised to the 0 power

Help with factoring 6x^2 11x-10=0

Where do I put the 6 in (x+15)(x-4)? Do I break it up, is there a certain process?-6x^2+11x-10=0 =(3x-2)(2x+5)=0 x=2/3 and x=-5/2-the answers posted are correct, but we would have to know the sign of

Finding missing coordinates on a graph

A (2,1) B (b,3) C (5,5) b > 3 and ABC makes a rigt angle trianglem what is b? I dont just want the answer i would also like the method in how you do it please.-If you plot the points on graph paper

Need help with Proof

Prove that in an ordered field, if the square root of 2 is a positive number whose square is 2, then the square root of 2 I tried doing a proof by contradiction, but I wanted to see if there was a m

Maths Homework Help! 10 Points!

| |2x+y=8 | 3x+4y=7 | | How much is x? And how much is y? Please help me and explain!!!!-There so many ways to solve it. The easiest way is to find y in function of x and replace it in the second

Thanks in advance! -2 |3-4-5| =

What is the symbol | mean and what do the symbol | represent ? If I can get that understanding than I can start to work the problem out. Please help thx.-|| means absolute value which means what ever

Prove that if a is an upper bound for A, and if a is also an element of A, then it must be that a = sup A.

If a is an upper bound for A, then sup(A) exists, and: sup(A) If a is an element of A, then, since sup(A) is an upper bound on A, we have: a Thus, sup(A) = a.

Half life Exponential and Decay Problem

The half-life of Palladium-100 is 4 days. After 24 days a sample of Palladium-100 has been reduced to a mass of 6 mg. What was the initial mass (in mg) of the sample? What is the mass 5 weeks after

Square root problem

x=√2+√2+√2+.....(all under 1 square root, so first √ is the main one, the next √ would be under the former √ , the third √ under the 2nd √ etc.) √y+√y+√y+....=5 how would i solve for x or y, its some

The Handshaking question

There are 4 people. If first person shakes with 3 others, and second person shakes with 2 others, and third person shakes with last person. Total handshakes = 3 + 2 + 1 = 6 1. Suppose there were 100

Find an equation of the straight line normal to the curve y = 1/x at the point where x=a

Find an equation of the straight line normal to the curve y = 1/x at the point where x=a y = - 1/x^2 are the slope -1 ? by that i mean the tangent Slope of the normal = -1/slope of the tangent->> a

Please solve (sinθ+cosθ)2+(sinθ-cosθ)2=0

please solve (sinθ+cosθ)2+(sinθ-cosθ)2=0 i needed it tommorow please help-(sinθ+cosθ)²+(sinθ-cosθ)²=0 (sin²θ + 2sinθcosθ + cos²θ)+(sin²θ - 2sinθcosθ + cos²θ)=0 (sin²θ+ cos²θ) + 2sinθcosθ - 2sinθcosθ +

Converting standard form to vertex form

when 7x^2-28x-5 is written in the form a(x-h)^2+k, k=? so its like converting a standard form equation to vertex form(right?) so i try to do axis of symmetry and get 2, what would this represent in t

How do you find the length of lines on a graph

I need to find the lengths A(2,1) B(6,3) and of B(6,3) C(5,5), the method of how itsdone would be very much appreciated.-Okay so Im pretty sure you should know what Pythagoras is. Its basically in a r