Solve.Twice the sum of -36 and a number is equal to -12. Find the number.
A. 30
B. 12
C. -42
D. -24
Answer: A
Mathematics
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Solve the problem.At a store, Sam bought 4 batteries, 10 60-watt light bulbs, 44 100-watt light bulbs, 11 picture-hanging kits, and a hammer. Jennifer bought 10 batteries, 5 100-watt light bulbs, and a package of tacks. Write the information as a 2 x 6 matrix.
A. 
B. 
C. 
D. 
Mathematics
Simplify by factoring. Assume that any variable in a radicand represents a positive real number.
A. x2 + 9
B. (x + k)2
C. (x + k)2
D. (x + k)
Mathematics
Find the derivative of the function.f(x) = (4x - 6)(4x + 1)
A. f'(x) = 16x - 20 B. f'(x) = 32x - 28 C. f'(x) = 32x - 20 D. f'(x) = 32x - 10
Mathematics
Find the values of the variables.
= 
A. a = 5, x = 1 B. a = 5, x = 5 C. a = 1, x = 1 D. a = 1, x = 5
Mathematics