Evaluate the expression.7 ? (8 - 15)2
A. -49
B. -343
C. 343
D. 49
Answer: C
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Find the following. Assume that letters can represent any real number.
A. -6 B. 6 C. 36 D. Not a real number
Solve the problem.A constant force F = 
moves an object along a vector D = 
, where units are in pounds and feet. Find the work done.
A. 222 foot-pounds B. 98 foot-pounds C. -98 foot-pounds D. 355.8 foot-pounds
A polynomial P(x) and a divisor d(x) are given. Use long division to find the quotient Q(x) and the remainder R(x) when P(x) is divided by d(x), and express P(x) in the form d(x)? Q(x) + R(x).P(x) = 3x3 - x2 + 2x + 6d(x) = x + 1
A. (x + 1)(3x2 + 2x) + 6 B. (x + 1)(3x2 - 4x + 2) + 8 C. (x - 1)(3x2 + 2x) + 6 D. (x + 1)(3x2 - 4x + 6) + 0
Expand, where i2 = -1.(-1 + i
)3
A. 8 B. 1 C. -1 - 3i D. 4 + 4i