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Sav [38]
3 years ago
9

The circle has a circumference of 9.42 units. What is the area of the square? Use 3.14 for π. Explain how you found the answer.

Mathematics
1 answer:
givi [52]3 years ago
5 0

Answer:

7.065 sq. units

Step-by-step explanation:

The circumference is given, thus you can use the equation 2πr = circumference to find out the radius first, r = 1.5.

Area = πr²

∴The required area is 7.065 sq. units

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Verizon [17]

Answer:

The population of a statistical survey is chose at random, so it's not believed to be biased.

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Factor the expression completely:<br> x⁴ + 27x
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Mm
Novay_Z [31]

Answer:

x + 2(2x-4) = 10

Step-by-step explanation:

Here in this question, we want to select which is the correct answer if we substitute for the value of y in the second equation, using the first.

In the first, we have;

y = 2x -4

Now, let’s input this value of y into the second equation.

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8 0
3 years ago
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True [87]

Answer:

Part A

  • C. 7.25

Part B

  • B. Ryan Shafer has been more consistent because his mean absolute deviation is less than Norm Duke’s.

Step-by-step explanation:

<u>Given data:</u>

  • 299, 281, 285, 269, 280, 269, 286, 287
<h3>Part A</h3>

<u>Find the mean of the data above:</u>

  • (299 + 281 + 285 + 269 + 280 + 269 + 286 + 287)/8 = 282

<u>Find absolute deviations, an absolute value of the difference of data and the mean:</u>

  • 299 - 282 = 17 ⇒ 17
  • 281 - 282 = -1 ⇒ 1
  • 285 - 282 = 3 ⇒ 3
  • 269 - 282 = -13 ⇒ 13
  • 280 - 282 = 2 ⇒ 2
  • 269 - 282 = -13 ⇒ 13
  • 286 - 282 = 4 ⇒ 4
  • 287 - 282 = 5  ⇒ 5

<u>Find mean absolute deviation:</u>

  • (17 + 1 + 3 + 13 + 2 + 13 + 4 + 5)/8 = 7.25

Correct choice is C

<h3>Part B</h3>

Less mean absolute deviation is the sign of more consistent data.

Since Ryan Shafer has smaller mean absolute deviation, he has been more consistent 7 < 7.25

Correct choice is B.

5 0
3 years ago
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Fynjy0 [20]

Answer:

The answer is 4.

Step-by-step explanation:

8 0
3 years ago
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