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12345 [234]
3 years ago
11

Jimmy's class has 4 jump ropes, and their average length is 112 meters. one jump rope is 34 meters, the second jump rope is 1 me

ter, and the third jump rope is 212 meters. what is the length of the fourth jump rope?
Mathematics
1 answer:
rusak2 [61]3 years ago
3 0

In this problem, the average is already given. In order to solve for the missing length of jump rope we have the following solution:

Let x = be the total length

X = 4(112)

X = 448

Therefore,

34m + 1m + 212m = 247m

448m - 247m = 201 length of the fourth jump rope

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SVETLANKA909090 [29]

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56.52 units²

explanation:

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Steps:

Using the formula:

→ (1/2)πr²

→ (1/2)(3.14)(6)²

→ 56.52 units²

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3 years ago
Sin^22x - 2cos2x + 2=0
zhuklara [117]

Answer:

x=πn, n∈Z

Step-by-step explanation:

if sin²2x=1-cos²2x, then

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\left[\begin{array}{cc}cos2x+3=0\\cos2x-1=0\\\end{array} \  \ \left[\begin{array}{cc}x \ 'does-not-exist'\\cos2x=1\\\end{array} \  \ 2x=2\pi n, n=Z \  x=\pi n, n=Z

5 0
2 years ago
Janet and Nadia each play basketball, Nadia has won twice the number of games Janet has, Is it possible for Janet to have won 10
Lapatulllka [165]

Answer:

It is not possible for Janet to have won 10 games.

Step-by-step explanation:

Let be "x" the number of games Janet won.

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Then, we express this situation with this equation:

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Therefore, it is not possible for Janet to have won 10 games.

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3 years ago
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