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vredina [299]
3 years ago
13

Help me svsuushsjsjsjshshsjsjjsjsjebdbz pls

Mathematics
1 answer:
Vlad1618 [11]3 years ago
7 0

Answer: 20

Step-by-step explanation:

STEP:1

Find the area of one circle

the area of the circle is equal to

A=bh

we have

b=11 ft

h=11 ft

subsititute

A= 11 times 11= 121

STEP: 2

Find the area of one circle

the area of the circle is equal to

A=\pi r^2

we have

r=11/2= 5.5

\pi= 3/14

Subsititute

A= (3/14) (5.5^2)=94.985

STEP 3:

Find the REA OF THE FIGURE

121 ft^2 + 94.985 ft^2= 20.0656631

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Name the prism in each case given that all lateral faces are rectangles and the bases are: Equilateral triangles
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3 years ago
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Klio2033 [76]
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5 0
3 years ago
Read 2 more answers
Use a graphing calculator to find the value of the correlation coefficient r and determine if there is a strong correlation amon
Natali [406]

The value of the correlation is -0.0721 and it is a weak negative correlation

<h3>How to determine the correlation coefficient?</h3>

The points are given as:

(12, 28), (15, 50), (18, 14), (21, 28), (24, 36)

Enter the above points in a graphing calculator.

From the graphing calculator, we have the following summary:

<u>X Values</u>

  • Sum X = 90
  • Mean = 18
  • ∑(X - Mx)^2 = SSx = 90

<u>Y Values</u>

  • Sum Y = 156
  • Mean = 31.2
  • ∑(Y - My)^2 = SSy = 692.8

<u>X and Y Combined</u>

  • N = 5
  • ∑(X - Mx)(Y - My) = -18

<u>R Calculation</u>

r = ∑((X - My)(Y - Mx)) / √((SSx)(SSy))

This gives

r = -18 / √((90)(692.8)) = -0.0721

So, the correlation coefficient is -0.0721

The above is a negative correlation because it is less than 0 and it is a weak correlation because it is closer to 0 than -1

Hence, the correlation is a weak negative correlation

Read more about correlation coefficient at:

brainly.com/question/27226153

#SPJ1

7 0
2 years ago
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