Solve the problem.y varies directly as z2 and y = 216 when z = 6. Find y when z = 3.
A. 36
B. 108
C. 18
D. 54
Answer: D
Mathematics
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Find the requested value.Find f(0) forf(x) = 
A. 3 B. -7 C. -5 D. 1
Mathematics
Find the unknown length in the right triangle. Simplify the answer if necessary.
A. b = 4
B. b = 
C. b = 2
D. b = 5
Mathematics
Express the set in simplest interval form.(-?, 8] ? [-4, ?)
A. [-4, 8) B. (-?, ?) C. [-4, 8] D. (-?, -4]
Mathematics
Suppose ABC is a right triangle with sides of lengths a, b, and c and right angle at C. Find the unknown side length using the Pythagorean theorem and then find the value of the indicated trigonometric function of the given angle. Rationalize the denominator if applicable.Find cot A when a = 9 and c = 10.
A. 
B. 
C. 
D. 
Mathematics