Find the x-intercepts.f(x) = 8x + x(x + 1)
A. (0, 0) and (-9, 0)
B. (9, 0)
C. (-9, 0)
D. (0, 0) and (9, 0)
Answer: A
Mathematics
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Provide an appropriate response.Evaluate 
for x = 4 and y = 8.
A. -1 B. 8 C. 6 D. 72
Mathematics
Use half-angle identities to find the exact value of the expression.sin 22.5°
A. - 
B. 
C. 
D. - 
Mathematics
Solve the problem.Solve S = 
?r2 + (r + 8)h for r.
A. r = 
B. r = 
C. r = 
D. r = 
Mathematics
Determine the specific solutions (if any) to the equation on the interval [0, 2?).tan2 ? sin ? = tan2 ?
A. 0, ?
B. 0, 
C. 
, ?
D. 
, 2?
Mathematics