Find possible value(s) of ? in the interval [0°, 360°) with the given trigonometric function value.cot ? = 1
A. 135°; 225°
B. 45°; 315°
C. 225°; 315°
D. 45°; 225°
Answer: D
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Graph the inverse of the function plotted, on the same set of axes. Use a dashed curve for the inverse.
A. 
B. 
Function is its own inverse.
C. 
D. 
Use Descartes' Rule of Signs to determine the possible number of positive and negative real zeros for the function. Then, use a graph to determine the actual number of positive and negative real zeros.P(x) = 8x5 - 8x4 + 5x3 - 3
A. possible: 1 or 3 pos, 0 neg
actual: 1 pos, 0 neg
B. possible: 0, 2, or 4 pos, 1 neg
actual: 0 pos, 1 neg
C. possible: 0 pos, 1 or 3 neg
actual: 0 pos, 1 neg
D. possible: 0 or 2 pos, 1 or 3 neg
actual: 0 pos, 1 neg
Solve.Crystal enjoys skiing in the winter. Last year she skied 18 times and spent a total of $558. How much did it cost her each time?
A. $32 B. $540 C. $10,044 D. $31
Find the domain, the range, and any intercepts.
A. domain: [0, ?); range: [3, ?); intercept: (0, 3) B. domain: [0, ?); range: [0, ?); intercept: (0, 3) C. domain: (-?, ?); range: [3, ?); intercept: (0, 3) D. domain: [0, ?); range: (-?, ?); intercept: (3, 0)