Translate the phrase to an algebraic expression.Eight times x
A. 8 - x
B. 
C. 8 + x
D. 8x
Answer: D
Mathematics
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Find an antiderivative of the given function.cos ?x + 4 sin 
A. 
sin ?x - 16 cos 
B. -sin ?x - 16 cos 
C. 
sin ?x - cos 
D. -? sin ?x + cos 
Mathematics
Evaluate the exponential expression.33
A. -27 B. 6 C. 9 D. 27
Mathematics
The graph of a function f on the interval [0, 8] is shown in the figure. Compute the Riemann sum for f on [0, 8] using four subintervals of equal length and choosing the evaluation points to be (a) the left endpoints, (b) the right endpoints, and (c) the midpoints of the subintervals.
Mathematics
Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 7 - 
+ 
- 6
B. 7 + 
+ 
+ 6
C. 7 - 
+ 
- 
D. 7 + 
+ 
+ 
Mathematics