Solve the problem.A pantograph is a mechanical device that can be used to draw enlargements or reductions. The pantograph below has a fixed point O. If point P is moved over a picture, P' traces out the copy of the picture, what is the scale factor of the dilation? Assume all of the points along the strips are the same distance apart.

A. 2
B. 1/3
C. 3
D. 1/2


Answer: D

Mathematics

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Solve the compound inequality. Write your answer in interval notation or state that there is no solution.2 - 4x ? 10 and 5x - 3 ? 17

A. (-?, -2] ? [4, ?) B. [4, ?) C. (-2, 4) D. [-2, 4]

Mathematics

Determine the maximum possible number of turning points for the graph of the function.f(x) = x2 + 8x3 

A. 1 B. 3 C. 8 D. 2

Mathematics

Write the decimal in words.31.7

A. Thirty-one and seven hundredths B. Thirty-one and seven thousandths C. Thirty-one and seven tenths  D. Thirty-one and seven millionths

Mathematics

Solve.


A) 1.5
B) 12
C) 3
D) 6
E) 24

Mathematics