Solve the problem.Find the center and the scale factor of the dilation shown below.
A. Center T; scale factor 3/4
B. Center S; scale factor 4/3
C. Center S; scale factor 3/4
D. Center T; scale factor 1/2
Answer: C
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Solve the absolute-value inequality.|x| > 2
A. {x
-2 < x < 2}, or (-2, 2)
B. {x
x > 2}, or (2, ?)
C. {x
x < -2 or x > 2}, or (-?, -2) ? (2, ?)
D. {x
x < -2}, or (-2, ?)
Use the square root method to solve the equation. y2 - 20 = 0
A. 10
B. ± 2
C. 400
D. 
Suppose the point (2, 4) is on the graph of y = f(x). Find a point on the graph of the given function.The reflection of the graph of y = f(x) across the y-axis
A. (-2, -4) B. (2, 4) C. (-2, 4) D. (2, -4)
Solve the problem.Anne and Nancy use a metal alloy that is 21.1% copper to make jewelry. How many ounces of an alloy that is 18% copper must be mixed with an alloy that is 25% copper to form 140 ounces of the desired alloy?
A. 67 oz B. 80 oz C. 62 oz D. 78 oz