Solve the problem.A reflecting telescope has a parabolic mirror for which the distance from the vertex to the focus is 25 feet. If the distance across the top of the mirror is 58 inches, how deep is the mirror in the center?
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Answer: A
Mathematics
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Provide an appropriate response.Andrea scored 
on her midterm exam. Her percent score on the exam was 0.71%.
A. True B. False
Mathematics
Collect like terms.-9b + 4a + 4c + 2b + 7a
A. -3a - 7b + 4c B. 11a - 7b + 4c C. -7a + 11b + 4c D. 11a - 7b
Mathematics
Estimate the value as a whole number or as a mixed numeral where the fractional part is 
.32
+ 20
? 14
A. 326
B. 312
C. 319
D. 327
Mathematics
State whether the relation is a function.This graph shows the amount of dissolved chlorine, in parts per million (ppm), at various times during a chemical manufacturing process.
A. It is a function. B. It is not a function.
Mathematics