Factor by grouping.3x2 - x - 80
A. (3x + 16)(x - 5)
B. (3x + 5)(x - 16)
C. (3x - 16)(x + 5)
D. (3x - 5)(x + 16)
Answer: C
Mathematics
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Determine whether the relation is a function.Tips earned by servers at a restaurant one evening:
A. A function B. Not a function
Mathematics
Find the intervals on which the function is continuous.y = 
A. continuous on the interval 
B. continuous on the interval 
C. continuous on the interval
D. continuous on the interval 
Mathematics
Use values from the compound interest table to find the compound interest. Round to the nearest cent.
$2,450 at 8% compounded semiannually for 6 years
A. $1,472.52 B. $1,176.00 C. $1,437.84 D. $650.03
Mathematics
Simplify.
x + 
+ 
x + 
A. 
x + 
B. 
x + 
C. 
x + 
D. 
x + 
Mathematics