Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.z-2/7 ? z3/7
A. z-1/7
B. z7/6
C. z6/7
D. z1/7
Answer: D
Mathematics
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Determine the inequality which matches the calculator graph. Do not use your calculator. Instead, use your knowledge of the concepts involved in graphing inequalities.
A. y ? 2x - 2 B. y ? -2x - 2 C. y ? -2x - 2 D. y ? 2x - 2
Mathematics
Write the expression in lowest terms.
A. - 
B. 
C. -1
D. 1
Mathematics
Solve the triangle. Round lengths to the nearest tenth and angle measures to the nearest degree.B = 10°C = 112°b = 19
A. A = 58°, a = 92.8, c = 101.4 B. A = 58°, a = 94.8, c = 103.4 C. A = 56°, a = 103.4, c = 94.8 D. A = 56°, a = 101.4, c = 92.8
Mathematics
Solve the equation and check.
A. y = -10 B. y = -6 C. y = -9 D. y = -8 E. y = -7
Mathematics