Factor by grouping.x4 - 5x2 - 24
A. (x2 + 3)(x2 - 8)
B. (x2 - 3)(x2 + 1)
C. (x2 - 3)(x2 - 8)
D. Prime
Answer: A
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Find the area of the specified region.Shared by the circles r = 2 and r = 4 cos ?
A. 
(2? + 3
)
B. 
?
C. 2?
D. 
(4? - 3
)
Solve.Your cable bill increased last year. For the first 5 months your bill was $28.89 each month. For the remaining 7 months it was $30.89 each month. Find the mean amount of your cable bill for the year.
A. $30.06 B. $29.89 C. $36.07 D. $360.68
Two trucks leave a city at the same time. One heads south at an average rate of 58 mph. The second truck heads due east at an average rate of 63 mph.After 1 hour and 35 minutes, how far apart are the trucks?
What will be an ideal response?
Write the percentage as a decimal number.0.3%
A. 0.3 B. 0.004 C. 0.003 D. 0.03