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3 years ago

7

Mitchell has decided to give his dog a longer leash to roam in the backyard. If the new 7 ft. leash is tied to the center pole i

n the yard, how much area in the yard does the dog have to move around?

1 answer:

zhenek [66]3 years ago

6 0

Answer:

153.94

Step-by-step explanation:

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10 points for this

kow [346]

<span>The range would be all real numbers such that 0 ≤ y ≤ 40.

hope this helps!</span>

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3 years ago

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Can an equilateral triangle ever be a right triangle too?

True [87]

No, it never can be a right triangle.

First, all the angles of an equilateral triangle is 60 degrees because all angles are the same and all the angles add up to 180:

180/3 = 60.

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stiks02 [169]

The slope is the change in Y over the change in X

The change in y is -2-0 = -2

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3 years ago

What do the word each me in math

Elodia [21]

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3 years ago

After a bride has interviewed 7 DJs to play at her wedding, her fiance tells her she needs to narrow it down to 4 DJs. In how ma

Alex17521 [72]

Answer:

840

Step-by-step explanation:

Given

$DJs = 7$

$To\ pick = 4$

Required

Determine the number of rankings

The term "ranking" as used in this question implies permutation and the required is calculated using:

$^nP_r = \frac{n!}{(n-r)!}$

Where

$n = 7$

$r = 4$

So:

$^nP_r = \frac{n!}{(n-r)!}$

$^7P_4 = \frac{7!}{(7-4)!}$

$^7P_4 = \frac{7!}{3!}$

$^7P_4 = \frac{7 * 6 * 5 * 4 * 3!}{3!}$

$^7P_4 = 7 * 6 * 5 * 4$

$^7P_4 = 840$

<em>Hence, number of ranking is 840</em>

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3 years ago