Solve the problem.The following describes a dilation with center O and image. Find the scale factor and the lengths designated by x and y.
A. x = 10; y = 8; scale factor 2
B. x = 14; y = 12; scale factor 2
C. x = 15; y = 13; scale factor 3
D. x = 11; y = 9; scale factor 3
Answer: A
Mathematics
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Solve the problem.The function A described by A(s) = s2 
gives the area of an equilateral triangle with side s. Find the area when a side measures 8 cm. Express your answer in radical form.
A. 48 cm2
B. 16
cm2
C. 2
cm2
D. 4
cm2
Mathematics
Evaluate the expression without using a calculator.ln e20x
A. e20x
B. -20x
C. 20x
D. 
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = - 
, 
< ? < 2?Find sin 
.
A. 
B. - 
C. 
D. - 
Mathematics
Solve the following equation for x.det
= 12
A. {4} B. {-2} C. {12} D. {18}
Mathematics