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Flauer [41]
3 years ago
11

A man completes 10 laps of a circular track with a radius of 4.5 metres (when rounded to one decimal place). Find the minimum an

d maximum distance that he runs
Mathematics
1 answer:
il63 [147K]3 years ago
5 0
Circumference of a circle: 2<span>πr

Simply input the radius, multiply the answer by 10 (because the man runs 10 laps) and solve!

Distance traveled = (</span>2πr) 10
                               = 2π(4.5m) 10
                               = ~ 282.743m

Hope this helps!
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A professor grades students on four tests, a term paper, and a final examination. Each test counts as 15% of the course grade. T
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7 0
2 years ago
Limit as x approaches 9 of x^2 -81/sqrt of x - 3
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Answer:

108

Step-by-step explanation:

Limit as x approaches 9 of x^2 -81/sqrt of x - 3

First substitute x into the expression

= 9²-81/√9 - 3

= 81-81/3-3

= 0/0 (indeterminate)

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= lim x -> 9 d/dx(x²-81)/√x - 3

= lim x -> 9 2x/1/2√x

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3 years ago
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2 years ago
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