Find the determinant of the matrix and determine if the matrix is invertible.
1, invertible
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Divide.x10 ÷ x5
A. x5 B. x4 C. x50 D. x15
Evaluate as requested.Given that f(x) = 4x2 - 3x + 9, find f(-x).
A. 3x2 + 4x + 8 B. -4x2 + 4x + 9 C. -4x2 + 3x - 9 D. 4x2 + 3x + 9
Solve the problem.Mrs. White wants to crochet hats and afghans for a church fundraising bazaar. She needs 5 hours to make a hat and 4 hours to make an afghan, and she has no more than 51 hours available. She has material for no more than 12 items and no more than 10 afghans. The bazaar will sell the hats for $20 each and the afghans for $8 each. How many of each should she make to maximize the income for the bazaar? What is the maximum income?
A. 9 hats and 3 afghans; $204 B. 5 hats and 7 afghans; $156 C. 3 hats and 9 afghans; $132 D. 10 hats and 2 afghans; $216
Identify the like terms in the algebraic expression. 6x + 3y - 39y + 54x
A. 6 and 39; 3 and 54 B. 6x and 3y; -39y and 54x C. 6x and 54x; 3y and -39y D. 6 and 54; 3 and -39