Simplify.
A. 5
B. -5
C. -16
D. 3
Answer: A
Mathematics
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Solve the problem.Find the derivative of the function 
at the point 
in the direction in which the function decreases most rapidly.
A. - 
B. - 
C. - 
D. - 
Mathematics
Give an appropriate answer.Let
f(x) = -3 and
g(x) = 6. Find
.
A. -5
B. - 
C. -9
D. - 2
Mathematics
Using the appropriate right triangle, find the exact value of the trigonometric expression.cos 30°
A. 
B. 
C. 
D. 
Mathematics
Solve. If necessary, round to the nearest tenth.A flagpole casts a shadow of 20 feet. Nearby, a 5-foot tree casts a shadow of 3 feet. What is the height of the flagpole?
A. 0.8 ft B. 300 ft C. 33.3 ft D. 12 ft
Mathematics