Simplify the expression.10x + 8(x - 3) + 2
A. 2x - 22
B. 18x - 26
C. 18x + 26
D. 18x - 22
Answer: D
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Determine the symmetries of the curve.r2 = 8 sin 5?
A. x-axis, y-axis, origin B. y-axis only C. Origin only D. x-axis only
Find the measure of each angle in the problem.
A. 216° and 144° B. 108° and 72° C. 100° and 80° D. 60° and 40°
Solve the problem.A pharmaceutical company claims that the concentration of a drug in a patient's bloodstream will be at least 25% for 8 hours. Suppose that clinical tests show that the concentration of the drug (as a percent) t hours after injection is given by 
During what time period is the concentration at least 25%?
A. 1 hours ? t ? 9 hours B. 1 hours ? t ? 5 hours C. 0 hours ? t ? 8 hours D. 2 hours ? t ? 10 hours
Provide an appropriate response.In scientific notation, what is the smallest positive integer which can be multiplied by a power of 10?
A. -1 B. 1 C. 0 D. -9