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3 years ago

15

In a loaf of bread, does the number of slices eaten and the number of slices remaining in the loaf have a positive, a negative,

or no correlation?

1 answer:

solmaris [256]3 years ago

6 0

I think it would have a negative correlation because the amount of slices eaten is increasing while the amount remaining is decreasing.

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The length of a rectangle is 5959 inches greatergreater than twice the width. if the diagonal is 2 inches more than the length,

lorasvet [3.4K]

Length: 2w + 59

width: w

diagonal: (2w + 59) + 2 = 2w + 61

Length² + width² = diagonal²

(2w + 59)² + (w)² = (2w + 61)²

(4w² + 118w + 3481) + w² = 4w² + 122w + 3721

5w² + 118w + 3481 = 4w² + 122w + 3721

w² + 118w + 3481 = 122w + 3721

w² - 4w + 3481 = 3721

w² - 4w - 240 = 0

a = 1, b = -4, c = -240

w = $[-(b) +/- \sqrt{(b)^{2} - 4(a)(c) }]/2(a)$

= $[-(-4) +/- \sqrt{(-4)^{2} - 4(1)(-240) }]/2(1)$

= $[4 +/- \sqrt{(16 + 960) }]/2$

= $[4 +/- \sqrt{(976) }]/2$

= $[2 +/- 4\sqrt{(61) }]/2$

= $1 +/- 2\sqrt{(61) }$

since width cannot be negative, disregard 1 - 2√61

w = 1 + 2√61 ≈ 16.62

Length: 2w + 59 = 2(1 + 2√61) + 59 = 2 + 4√61 + 59 = 61 + 4√61 ≈ 92.24

Answer: width = 16.62 in, length = 92.24 in

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3 years ago

Which of the following is a perfect square?<br> A. 279<br> B. 154<br> C. 169<br> D. 115

dybincka [34]

C. 13 times 13 makes 169.

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In circle O, RV= 4 and VO= 7 find BA

Talja [164]

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Nine boys share 4 pizzas equally. what fraction of a pizza does each boy get?

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Please answer !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!

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