Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Rewrite the radical expression using rational exponents. Assume all variables represent nonnegative real numbers.
7
A. (5x4y)9/7 B. (5x4y)7/9 C. (5xy)19 D. (5x4y)2
Mathematics
Solve the problem.A formula for the focal length of a lens is f = 
. Calculate f (the focal length) for a = 14 cm and 
Round to the nearest tenth.
A. 6.7 cm B. 6.5 cm C. 7.3 cm D. 7.0 cm
Mathematics
Solve the problem.A twin-engined aircraft can fly 720 miles from city A to city B in 4 hours with the wind and make the return trip in 6 hours against the wind. What is the speed of the wind?
A. 45 mph B. 60 mph C. 15 mph D. 30 mph
Mathematics
Solve.
+ 
= 22
A. 528
B. 129
C. 
D. 33
Mathematics