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3 years ago

7

the tire on frank's bike moves 75 inches in one rotation. how many rotations will the tire have made after frank rides 50 feet

1 answer:

Orlov [11]3 years ago

7 0

8 rotations

50 feet = 600 inches

600 inches divided by 75 inches = 8

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$\bf ~~~~~~~~~~~~\textit{negative exponents}
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3 years ago

If 14 out of 20people like chocolate milk, what percent of people don't like chocolate milk?

allsm [11]

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4 0

3 years ago

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In an effort to determine whether any correlation exists between the price of stocks of airlines, an analyst sampled six days of

vovikov84 [41]

Answer:

Check the explanation

Step-by-step explanation:

Following table shows the calculations:

Delta, X Southwest , Y X^2 Y^2 XY

45.96 38.76 2112.3216 1502.3376 1781.4096

46.8 45.41 2190.24 2062.0681 2125.188

47.93 15.7 2297.2849 246.49 752.501

51.78 49.58 2681.1684 2458.1764 2567.2524

52.17 44.34 2721.7089 1966.0356 2313.2178

47.36 18 2242.9696 324 852.48

Total 292 211.79 14245.6934 8559.1077 10392.0488

Sample size: n =6

Now

$S_{yy}=\sum y^{2}-\frac{\left (\sum y \right )^{2}}{n}=1083.27$

$S_{xx}=\sum x^{2}-\frac{\left (\sum x \right )^{2}}{n}=35.03$

$S_{xy}=\sum xy-\frac{\left (\sum x \right )\left (\sum y \right )}{n}=84.94$

The coefficient of correlation is :

$r=\frac{S_{xy}}{\sqrt{S_{xx}S_{yy}}}=0.436$

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3 years ago

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Art [367]

Well what do u need help with can u explain?

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3 years ago

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lesya692 [45]

Answer:

what

Step-by-step explanation:

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3 years ago

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