Simplify the expression so that no negative exponents appear in the final result. Assume all variables represent nonzero numbers.
A. 
B. 
C. 
D. 
Answer: A
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Find the measures of two angles, one positive and one negative, that are coterminal with the given angle.49.8°
A. 229.8°, -310.2° B. 409.8°; -310.2° C. 229.8°; -130.2° D. 409.8°; -130.2°
Solve the problem.A company has three factories I, II, and III. Each factory employs both skilled and unskilled worker. The break down of the number of workers by type in the three factories is summarized by matrix A below. The hourly wage of the skilled worker is $15 and that of the unskilled worker is $10. Multiply appropriate matrices and compute the total hourly pay at each factory. 
A =
?
What will be an ideal response?
Simplify. Assume x can represent any real number.
A. x
B. -x
C. 
D. Is not defined
Write exponential notation.20 ? 20 ? 20 ? 20 ? 20
A. 5 ? 515 B. 515 C. 5 ? 20 D. 205