Find the perimeter of the polygon.
A. 15.6 m
B. 16.8 m
C. 8.4 m
D. 9.6 m
Answer: B
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Find the derivative of the function.r = (sec ? + tan ?)-2
A. -2(sec ? tan ? + sec2?)-3
B. 
C. -2(sec ? + tan ?)-3
D. -2(sec ? + tan ?)-3(tan2 ? + sec ? tan ?)
Solve the problem.At a plant that packages bottled spring water, the water is passed through a sequence of ion-exchange filters to reduce the sodium content prior to bottling. Each filter removes 68% of the sodium present in the water passing through it. Determine the number of filters that must be used to reduce the sodium concentration from 16 parts-per-million to 1.58 parts-per-million.
A. 7 filters B. 9 filters C. 6 filters D. 8 filters
Use factoring to solve the equation.x2 + 2x - 15 = 0
A. 5, 3 B. -5, 3 C. 5, -3 D. -5, 1
Write the expression in the standard form a + bi.
A. -i B. -1 C. 1 D. i