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Y_Kistochka [10]
3 years ago
8

PLZ help i do know the answer to this already from another brainly question but i just would like to understand how its solved s

o please help. This figure consists of a rectangle and a quarter circle.
What is the perimeter of this figure?

Use 3.14 for π.

Enter your answer as a decimal in the box.

Mathematics
1 answer:
amm18123 years ago
4 0

Answer:

  • 66.56 cm

Step-by-step explanation:

<u>The figure consist of:</u>

  • 1. A rectangle with sides 10 cm and 17 cm
  • 2. A quarter circle

<u>The perimeter is:</u>

  • P = 1/4C + 2*10 + 17 + (17 - 8) + 8
  • P = 1/4*2*3.14*8 + 54 = 66.56 cm
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The difference (faculty-student) in the sample proportions of those who believe that five minutes is not enough time for students to change classes typically varies about 0.096 from the true difference in proportions. Option D is correct.

<h3>What is the standard deviation?</h3>

It is a measurement of statistical data dispersion. The degree to which the value varies is known as standard deviation.

The standard deviation of the sampling distribution is found as;

\rm \sigma_F-\sigma_s= \sqrt{\frac{0.37 \times (1-0.37)}{28}+\frac{0.89 \times (1-0.89)}{100}  } \\\\  \sigma_F-\sigma_s=0.096

The difference in the sample proportions of those who think five minutes is not enough time for students to switch classrooms generally differs by roughly 0.096 from the actual difference in proportions.

Hence option D is correct.

To learn more about the standard deviation, refer to: brainly.com/question/16555520.

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6 0
2 years ago
I need help with geometry
swat32

Answer:

6m

Step-by-step explanation:

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Hope this helps!

7 0
3 years ago
Selene's checking account balance was -$33, and then she withdrew $42 more. What is her checking account balance after the withd
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Answer:

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7 0
3 years ago
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Answer:

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Step-by-step explanation:

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