Solve the problem.What is the largest possible volume of an open metal box made from 75 ft2 of tin? Ignore the thickness of the tin.
A. 31.2 ft3
B. 125.0 ft3
C. 62.5 ft3
D. 12.5 ft3
Answer: C
Mathematics
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Solve the problem.The level of a sound in decibels (db) is determined by the formula N = 10 ? log(I × 1012) db, where I is the intensity of the sound in watts per square meter. A certain noise has an intensity of 
per square meter. What is the sound level of this noise? (Round your answer to the nearest decibel.)
A. 89 db B. 9 db C. 79 db D. 206 db
Mathematics
Add or subtract as indicated.
+ 
- 
A. 
B. 
C. 
D. 
Mathematics
Decide whether or not the functions are inverses of each other.f(x) = 4x + 16, g(x) = 
x - 4
A. Yes B. No
Mathematics
A searchlight rotates through one complete revolution every 6 seconds. How long does it take the light to rotate through 300°? ?
A. 4 sec. B. 7 sec. C. 2 sec. D. 3 sec. E. 5 sec.
Mathematics