Use the reference angle to find the exact value of the expression. Do not use a calculator.cot 

A. - 
B.
C. -
D.


Answer: D

Mathematics

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Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real numbers.

A.
B. 72y(y + 6)  
C.
D.

Mathematics

Explain the behavior of the graph of f(x) as it approaches its vertical asymptote.f(x) = 

A. Approaches -? from the left and the right B. Approaches ? from the left and the right C. Approaches ? from the left, approaches -? from the right D. Approaches -? from the left, approaches ? from the right

Mathematics

Use the addition property of equality to solve the equation.x + 1 = 19

A.
B. 20
C. 18
D. -18

Mathematics

Find the value of x, suppose ?a=74°.


a. 53°
b. 37°
c. 16°
d. 74°

Mathematics