Use even and odd properties of the trigonometric functions to find the exact value of the expression.sec 
A. -2
B. 2
C. 
D. - 
Answer: C
Mathematics
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Solve.log 8 8 = x
A. 2 B. 1 C. 0 D. 0.1
Mathematics
Find the book value after the given number of years, using the straight-line method. Round your answer to the nearest dollar.Find the book value at the end of 5 years.Cost:$77,500Estimated life:50 yearsEstimated scrap value:$4,650
A. $7,285 B. $69,750 C. $76,043 D. $70,215
Mathematics
Find the indicated partial sum for the given sequence.s10, 79, 144, 209, 274, . . .
A. -2135 B. 3320 C. 3715 D. -3320
Mathematics
Evaluate the determinant.
A. -81 B. 39 C. -60 D. 60
Mathematics