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QveST [7]
3 years ago
9

Neighborhood block: StartFraction 3 over 20 EndFraction miles. A rectangle has a width of w. Perimeter = 3 20 + w + 3 20 + w Bij

an wants to go running during his family's vacation to New York City. To do so, he will run a neighborhood block 20 times. Bijan runs a total of 8 miles. Use the formula for the perimeter of the neighborhood block and the reciprocal to find the width w of the city block.
Mathematics
1 answer:
butalik [34]3 years ago
3 0

Answer:

it is 1/20

Step-by-step explanation:

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Step-by-step explanation:

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What value of x makes this equation true -6x+3= 45
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ArbitrLikvidat [17]

Answer:

a) Sample correlation coefficient, r = 0.7411

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Step-by-step explanation:

a) The formula for the sample correlation coefficient is given by the formula:

r = \frac{S_{xy} }{\sqrt{S_{xx} S_{yy} }} }

S_{xx} = 2,648,130.357\\S_{yy} = 36.7376,\\S_{xy} = 7408.225

r = \frac{7408.225}{\sqrt{2648130.357*36.7376} }

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b)

i) formula for the test statistic is given by the formula:

t = \frac{r\sqrt{n-1} }{\sqrt{1 - r^{2} } }

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t = \frac{0.7511\sqrt{14-1} }{\sqrt{1 - 0.7511^{2} } }

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ii) Degree of freedom, df = n -2

df = 14 -2

df = 12

The P-value is calculate from the degree of freedom and the test statistic using excel

P-value =(=TDIST(t,df,tail))

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4 0
3 years ago
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Answer:

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Bumek [7]

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