Factor the trinomial completely. If the trinomial cannot be factored, say it is prime.-3w2 - 27w - 42
A. -(w - 7)(w - 2)
B. prime
C. -3(w + 7)(w + 2)
D. -(3w + 21)(w + 2)
Answer: C
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Find the volume of the solid generated by revolving the region about the given axis. Use the shell or washer method.The region in the first quadrant bounded by x = 2y - y2 and the y-axis about the x-axis
A. 2?
B. 4?
C. 
?
D. 
?
The wages of the employees of a company are presented in this histogram. Answer the question.
How many employees earn at least $6 and less than $8 an hour?
A. 34 B. 46 C. 14 D. 20
Solve the problem.The probability of drawing a face card from a standard deck of 52 cards is 
. The probability of drawing a diamond is 
. Which card has a higher probability of being drawn, a diamond or a face card? Explain.
A. A diamond, because 
is greater than 
.
B. A face card, because 
is greater than 
.
Determine if the infinite geometric series converges or diverges. If the series converges, find its sum.100 + 20 + 4 + 
+ . . .
A. diverges B. converges, - 25 C. converges, 124 D. converges, 125