Use the given matrices to compute the given expression.Let B = 
. Find -2B.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Factor.x3 - x2 - 56x
A. x(x + 8)(x - 7) B. x3 - x2 - 56 C. (x2 + 1)(x - 56) D. x(x + 7)(x - 8)
Mathematics
Estimate the product or quotient by first rounding each number so that there is one nonzero digit.-5.319 ? (-5.04)
A. 250 B. -250 C. -25 D. 25
Mathematics
Solve the problem.To estimate the ideal minimum weight of a woman in pounds multiply her height in inches by 4 and subtract 130. Let W = the ideal minimum weight and h = height. W is a linear function of h. Find the ideal minimum weight of a woman whose height is 62 inches.
A. 118 lb B. 378 lb C. 120 lb D. 130 lb
Mathematics
Find the real solutions of the equation.
= x + 4
A. {5} B. {9} C. {1} D. {-5}
Mathematics