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mash [69]
4 years ago
8

A runner crossed the finish line at the time shown on the clock. The runners time was 2 hours and 45 minutes. What time did the

race begin?

Mathematics
1 answer:
dsp734 years ago
7 0

Answer:

The race began at 12.

Step-by-step explanation:

He finish at 2 hours and 45 minutes. If you go back 2 hours and 45 minutes from the clock it is 12.

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Answer:

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Step-by-step explanation:

1.\\\text{The length of semicircle:}\\\\l=\dfrac{1}{2}d\pi\\\\d-diameter\\\\d=2.2\\\\\text{substitute:}\\\\l=\dfrac{1}{2}(2.2)\pi=1.1\pi\approx(1.1)(3.14)=3.454\\\\\text{The perimeter of the figure:}\\\\P=2(3.8)+2.2+3.454=13.254

2.\\P=2(3.32)+2x=6.64+2x

6.\\\text{Look at the picture.}\\\\P=4(2)+2(1)=8+2=10

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3 years ago
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goldfiish [28.3K]

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Hope this helps!

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