18.79+2.11+(-1.92)+17.28
1 answer:
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Answer:
Step-by-step explanation:
Area of circle:
<em>area = π · r · r</em>
<em>Radius= </em>= 8
= 200.96
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Answer: 4/5
Step-by-step explanation:
Here, The hurdle track that is 1/5 of a mile long.
And, After extending the track, the length of the hurdle track = 1/4 of a mile
Therefore, the unit rate of length in the longer track per mile of length in the shorter track = the initial length of the hurdle track / the final length of the hurdel track
=
=