Addition and subtraction of matrices:

Let: A =, B=, C=

a) Find A + B=

b) Find B-C =

c) Find the additive inverse of matric C

Find the solution of this system of equations. Separate the x - and y-values with a comma. x - 2y = - 29 and x - y = - 11

How many solutions do each of these systems have? 1. Y=3/4x-5 -3x+4y=-20 2. X+4y=6 Y=2x-3 3. 6x+3y=-12 Y=-2x+4 1-3 either have A. One solution B. two solutions C. an infinite number D. No solution

What is the estimate of how much gas is used on a 250-mile car trip if the equation for the line of the best fit is y = 0.03x + 0.25

How do I combine like terms for 5y-8-y

cookie recipe calls for 1/4 teaspoon of vanilla extract she has 9/12 of a teaspoon in her kitchen how many batches of cookies can she make

What is the percent of change in $60 to $80

Express answer in exact form. Show all work for full credit. Find the area of one segment formed by a square with sides of 6" inscribed in a circle. (Hint: use the ratio of 1:1: squared 2 to find the radius of the circle.)

Alice and Shane went to the pet store and bought 13 bags of dog food all together. Alice bought 9 bags of those bags of dog food. How many bags of dog food did Shane buy?

Which is more, 1 ton or 1,438 pounds?

If a company plans to sell 48,000 units of product but sells 60,000, the most appropriate comparison of the cost data associated with the sales will be by a budget based on? Select one: a. the original planned level of activity. b.