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SIZIF [17.4K]
2 years ago
15

An athlete completes one round of a circular track of diameter 200 m in 40 s what will be the distance covered and displacement

at the end of 2 min 20s
Mathematics
1 answer:
Cloud [144]2 years ago
7 0

Answer:

700π m ~ 2199 m

Step-by-step explanation:

diameter = d = 200 m

2 min 20s = 140 s

1 round / 40 s

140 = 40 * 3 + 20

so the athlete will cover 3 round and half

1 round = d * π

covered = c = 3 * 200 * π + 200/2 * π = 700 * π

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3 years ago
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4 years ago
Find the vertex of this parabola:<br> y = -x2 - 4x - 2
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<h3>Hello!</h3>

===============================

In order to find the vertex of a parabola, we use the following formula:

\bold{\displaystyle\frac{-b}{2a} }}

Remember, a parabola looks like so:

\tt{y=ax^2+bx+c}

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Divide:

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===================================

<h3>Notes:</h3>
  • Hope everything is clear.
  • Let me know if you have any questions!
  • Enjoy your day!
  • Always remember: Knowledge is power!
<h3>Answered by:</h3>

\mathbb{DiAmOnD}\\{\boxed{An~Emotional~And~Creative~Helper}}}}

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