Solve the problem.A reflecting telescope has a mirror shaped like a paraboloid of revolution. If the distance of the vertex to the focus is 32 feet and the distance across the top of the mirror is 74 inches, how deep is the mirror in the center?
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Answer: D
Mathematics
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Find the indicated cardinal number.Find n(A × B) given that n(A) = 40 and n(B) = 7.
A. 47 B. 33 C. 54 D. 280
Mathematics
Round to the nearest hundredth.8.4328
A. 8.43 B. 8.433 C. 8.432 D. 8.44
Mathematics
Provide an appropriate response.Let M be a 5 × 5 matrix. Which of the following statements are true?(i)I5 M = M(ii)I5 + M = M(iii)MI5 = I5(iv)MI5 = M
A. (i), (iv) B. (i), (iii), (iv) C. (ii), (iii) D. (i), (ii), (iii), (iv)
Mathematics
Translate the percent problem to a proportion using x for the unknown value. Do not solve the proportion.43 is 74% of what?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics