Answer the question.How can the graph of f(x) = -7|x| be obtained from the graph of 
A. Stretch it vertically by multiplying each y-coordinate by -7. Reflect it across the x-axis.
B. Stretch it vertically by multiplying each y-coordinate by 7. Reflect it across the y-axis.
C. Stretch it vertically by multiplying each y-coordinate by 7. Reflect it across the x-axis.
D. Stretch it vertically by multiplying each y-coordinate by -7. Reflect it across the y-axis.
Answer: C
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Provide an appropriate response.Solve the following equation: 
a + a = 54
Fill in the blank(s) with the appropriate word(s).
Solve the problem.A pendulum bob swings through an arc 60 inches long on its first swing. Each swing thereafter, it swings only 66% as far as on the previous swing. What is the length of the arc after 8 swings? Round your answer to two decimal places, if necessary.
A. 3.27 in. B. 1.43 in. C. 2.16 in. D. 277.2 in.
Find the reference angle for the given angle.- 
A. 
B. 
C. 
D. 
Perform the indicated operation. Simplify if possible.
? 
A. - 
B. - 
C. - 
D. 