Evaluate the integral.
A. 5 sin x + 5x cos x + C
B. 5 sin x - x cos x + C
C. 5 sin x - 5x cos x + C
D. 5 sin x - 5 cos x + C
Answer: C
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Use absolute value notation to describe the situation. The elevation at the bottom of a mountain is 398 feet above sea level. The elevation at the top of the mountain is 4672 feet above sea level. What is the height of the mountain?
A. |398| + |4672| B. |398| - |4672| C. -|398| - |4672| D. |398 + 4672| E. |398 - 4672|
Simplify the expression. Assume that all variables are positive.
A. xy7 B. x7y2 C. x2y7 D. x7y
Find the capacity of the container, when ?a? = 20, ?b? = 15, ?c? = 30.
?
?
A. 15 L B. 10 L C. 12 L D. 13 L E. 9 L
Simplify. Assume that all variables represent positive numbers.
A. 16x14 B. 128x14 C. 65,536x56 D. 7168x