Use the information given about the angle ? to find the exact value of the indicated trigonometric function.cos ? = - 
, sin ? > 0Find cos 
.
A. - 
B. 
C. - 
D. 
Answer: D
Mathematics
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Evaluate the integral.
A. 
sec-1 
+ C
B. 
sin-1 
+ C
C. 
sin-1 
+ C
D. 
sec-1 
+ C
Mathematics
Write in factored form.r(s - 5) + 2(s - 5)
A. (r + 2)(s - 5) B. 2r(s - 5) C. r(s - 5) + 2 D. (r - 2)(s + 5)
Mathematics
Use the given functions to find the requested function.f(x) = 4x + 2, g(x) = 8x - 5Find fg.
A. 32x2 + 11x - 10 B. 32x2 - 10 C. 32x2 - 4x - 10 D. 12x2 - 4x - 3
Mathematics
Use a graphing calculator to solve the linear equation.The graph of y1 is shown in the standard viewing window. Which is the only choice that could possibly be the solution of the equation y1 = 0?
-5, 5, 
, 15
A. -5
B. 
C. 15
D. 5
Mathematics