Find the exact value. Do not use a calculator.cot 390°
A. - 
B. 
C. 
D. - 
Answer: C
Mathematics
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Find the second derivative.s = 
+ 7
A. 14t + 7 B. 7t C. 14t D. 7t2
Mathematics
Find the present value of $20,000 due in 4 year(s) at the given rate of interest. Round your answer to the nearest dollar. ? 5% / year compounded monthly __________ ? 8% / year compounded daily __________ ?
A. $16,381, $14,523 B. $16,381, $24,418 C. $16,381, $27,542 D. $14,523, $24,418
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Find the x- and y-intercepts of f.f(x) = 2x3(x - 5)5
A. x-intercepts: 0, -5; y-intercept: 2 B. x-intercepts: 0, -5; y-intercept: 0 C. x-intercepts: 0, 5; y-intercept: 2 D. x-intercepts: 0, 5; y-intercept: 0
Mathematics