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2 years ago

14

please help me(i need a quick answer) Jackie is training for a marathon. Today she is running 2 1/2 kilometers. She took a rest

after 1/4 kilometer. If she takes a short break after each 1/4 kilometer than how many breaks will she take during her run?

1 answer:

Yuliya22 [10]2 years ago

8 0

Answer:

10

Step-by-step explanation:

1/4×10=2 1/2

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Without plotting points, let M=(-2,-1), N=(3,1), M'= (0,2), and N'=(5, 4). Without using the distanceformula, show that segments

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M=(x1, y1)=(-2,-1),

N=(x2, y2)=(3,1),

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N'=(x4, y4)=(5, 4).

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$\begin{gathered} \text{Slope of MN=}\frac{y2-y1}{x2-x1} \\ =\frac{1-(-1)}{3-(-2)} \\ =\frac{2}{5} \\ \text{Slope of M'N'=}\frac{y4-y3}{x4-x3} \\ =\frac{4-2}{5-0} \\ =\frac{2}{5} \end{gathered}$

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Pair 2 is a reflection. If you rotated it it would be flipped, so that doesn’t make sense.

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