Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.cot 390°
A. -
B. 
C. 
D. - 
Answer: B
Mathematics
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What property of multiplication is illustrated in the diagram below?
A. Closure property B. Commutative property C. Distributive property D. Associative property
Mathematics
Provide an appropriate response.Perform the indicated operation. Write answer with positive exponents: 4c(-5c2)
What will be an ideal response?
Mathematics
Use the given vectors u, v, w, and z to draw the indicated vector. 
v - w
A. 
B. 
C. 
D. 
Mathematics
Solve and graph the inequality. Give answer in interval notation.12x + 20 > 4(2x + 2)
A. (-?, 12)
B. (-?, -3)
C. (-3, ?)
D. (12, ?)
Mathematics