Write the following in exponential form. Assume that all variables represent positive values.
A. 2a7/4
B. 2a4/7
C. 2a-4/7
D. 2a-7/4
Answer: C
Mathematics
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Use identities to find the exact value of the expression.cos 20° sec 20°
A. 20 B. 1 C. -1 D. 0
Mathematics
Use the accompanying graph of y = f(x) to sketch the graph of the indicated equation.y = 2f(x)
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Explain why 
= ?x? when k is even but 
= x when k is odd.
What will be an ideal response?
Mathematics
Write the expression using exponents.
A. 
6
B. 6
C. 6
D. 
5
Mathematics