Graph the function.y =  cot x

A.

B.

C.

D.


Answer: A

Mathematics

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Solve the problem.An airplane flies on a compass heading due north at 430 mph. The wind affecting the plane is blowing from 298° at 31.0 mph. What is the true course and ground speed of the airplane? Round results to an appropriate number of significant digits.

A. 92°, 458 mph B. 86°, 445 mph C. 87°, 458 mph D. 92°, 445 mph

Mathematics

Solve the exponential equation.64 = 45x ? 16x2

A. -3 , 
B. -3 , -4
C. 3 , - 
D. 3 , 4

Mathematics

Solve the problem.The telethon raised 845% of its anticipated goal. Express this percent as a decimal.

A. 0.845 B. 845 C. 84.5 D. 8.45

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If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth.16-7/4

A. - 
B. -128
C.
D. -16,384

Mathematics