A+ Answers

x^2 + y^2 = 1
x^2 + 25y^2 = 25 

 Find solution set for system by graphing both of the systems equations in the same rectangular coordinate system and finding points of intersection

A rectangular painting has a diagonal measure of 25 inches and an area of 168 square inches. use the formula for the area of the rectangle and the Pythagorean Theorem to find the length and width of the painting. 

The longer side, the length is ____ inches, and the shorter side, the width, is ____ inches.

The logistic growth function P(x) = 90 / 1+271 e ^-0.122x models the percentage, P(x), of Americans who are x years old and have some coronary heart disease. Use this function to find the percentage of 38-year olds who have some coronary heart disease. 

What percentage of 38 year olds with coronary heart disease? 

round to one decimal place

Question: 4^(x+1) = 239

Evaluate the expression. 

1 - 10P9/ 11P10 =

use Gauss Jordan method to solve the system of equations. If the system has infinitely many solutions, give the solution with the z arbitrary. 

x-7y +4z = 1
2X - 3y + 2z = -1