Rationalize the denominator. Write the quotient in lowest terms.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the problem.A radio transmission tower is 200 feet tall. How long should a guy wire be if it is to be attached 6 feet from the top and is to make an angle of 26° with the ground? Give your answer to the nearest tenth of a foot.
A. 456.2 ft B. 222.5 ft C. 442.5 ft D. 215.8 ft
Mathematics
Solve the problem.An airplane flies 420 miles with the wind and 320 against the wind in the same length of time. If the speed of the wind is 40 mph, what is the speed of the airplane in still air?
A. 296 mph B. 286 mph C. 128 mph D. 301 mph
Mathematics
Complete the identity.8 sin x cos3 x + 8 sin3 x cos x = ?
A. 4 sin 2x B. 4 cos 2x C. 4 cos x D. 4 sin x
Mathematics
Convert the units using two or three unit fractions.2 yd = 
in.
A. 6 B. 36 C. 72 D. 24
Mathematics