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Olin [163]
3 years ago
5

Could someone possibly help me with this

Mathematics
1 answer:
Sergio [31]3 years ago
3 0

Answer:

40

Step-by-step explanation:

The shape has 6 sides a,b,c,d,e,f

The perimeter is the sum of the sides

P = a+b+c+d+e +f

4 of the sides add to 195  a+b+c+d = 195  Replace in the equation

P = 195 +e+f

We know that e and f are equal

P = 195+f+f

P = 195+2f

The perimeter is 275

275=195+2f

Subtract 195 from each side

275 -195 = 195+2f-195

80 = 2f

Divide by 2

80/2 = 2f/2

40 =f

The other 2 sides are 40 ft each

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4t+2c=200
2t+7c=400

I will solve for c in terms of t first
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Then I will substitute this in for c in the second equation to make it single variable
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4 years ago
Four different paints are advertised as having the same drying time. To check the manufacturer's claims, five samples were teste
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Answer:

(1) 330

(2) 692

(3) 110

(4) 43.25

Step-by-step explanation:

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One-way ANOVA can be used to determine whether all the four paints have the same drying time.

Use Excel to perform the one-way ANOVA.

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A dialog box will open.

Select the data.

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The output is attached below.

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4 0
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Answer:

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