4 years ago

The circumference of a circle changes from 20 to 4 after dilation what is the scale factor

Mathematics

1 answer:

Vitek1552 [10]4 years ago

3 0

Answer:

1/5

Step-by-step explanation

20 * 1/5 = 4

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3 years ago

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3 years ago

Point M is the midpoint of PO. The coordinates of P and M, are given below.<br><br>plz help

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The formula of a midpoint of PQ:

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$x_M=\dfrac{x_P+x_Q}{2},\ x_M=5,\ x_P=11:\\\\\dfrac{11+x_Q}{2}=5\qquad|\cdot2\\\\11+x_Q=10\qquad|-11\\\\x_Q=-1\\\\y_M=\dfrac{y_P+y_Q}{2},\ y_M=-2,\ y_P=-10\\\\\dfrac{-10+y_Q}{2}=-2\qquad|\cdot2\\\\-10+y_Q=-4\qquad|+10\\\\y_Q=6$

<h3>Answer: Q(-1, 6)</h3>

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3 years ago