Consider the matrices A = 2 1 2 2 2 - 2 3 1 1 and x = x1 x2 x3

(a) Show that the equation Ax = x can be rewritten as (A - I) x = 0 and use this result to solve Ax = x for x.

(b) Solve Ax = 4

Negative 9 minus negative 10

Complete the equivalent equation for - 7x - 60 = x2 + 10x. (x + ) (x + ) = 0 What are the solutions of - 7x - 60 = x2 + 10x? x =

A construction crew builds 2 floors of a skyscraper every 10 days. How log will it take for the crew to build 15 floors on the skyscraper

Toni pizzeria deposited in checking account, the deposit included 4 fifty-dollar bills, 8 twent dollar bills, 16 ten dollar bills, 2 five dollar bills, 16 one-dollar bills, 29 quarters, 14 dimes, 9 nickles and 17 pennies. What was the total deposit?

Joe spent $8 on lunch and $6.50 on dry cleaning and 2 shorts. In all he spent $52 what does each shirt cost

What is the equation of a circle with a center at (1, 1) and a radius of 5?

Your cell phone cost $24.99 per month plus $0.18 for each text message you send of receive. You must have at most $29 to spend on your cell phone bill. What is the maximum number of text messages that you can send or receive next month

In your own words, describe what it means for a number to be a solution to an equation. How do you check to see if a number is a solution to an equation?

How to write 5x - 7y = 14 in function form

The one digit of a two digit number is one less than the tens digit. One-half the sum of the ones digit and double the tens digit is 13. Find the number and show your work.