Supply a complete algebraic solution

Supply a complete algebraic solution

You are choosing between two different cell phone plans. The first plan charges a rate of 23 cents per minute. The second plan charges a monthly fee of $44.95 plus 8 cents per minute.

This is for one of my math questions. I need help ASAP

A helicopter is being loaded at its current location and will take off and fly to another airfield. The other airfield is 410 miles to the West and 430 miles to the North. What is the straight line...

sin(x+y)+sin(x-y)=2sinxcosy

2(x-5)^2=17 How do I solve this using extraction of square roots? HELP!!

y=-log(3)x+2. Find domain, x-intercept and vertical asymptote, I also have to sketch a graph

use either the binomial theorm or pascal's triangle

what is the multi-rule definition for the abs (X^2-2x-8)? I know that x=4 and x=-2 I don't know how to come up with multi-rule

The worksheet deals withb trigonometric identities and we have to prove each of them. I'm stumped on this one. Please, if you could help, I'd highly appreciate it!