Is 70 thousand written in standard form or word form? Explain

Mathematics

1 answer:

Gemiola [76]2 years ago

8 0

Word form means write the number verbally in written form <span>Standard form stands for the actual number</span>

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Find the coefficient of correlation between and X and Y if covariance between X and Y is 15 and the variance of X and Y are resp

IRINA_888 [86]

Answer:

0.95

Step-by-step explanation:

$Correlation \ coefficient \ (r) = \dfrac{covaraince \ between \ X \ and \ Y }{SD_X \times SD_Y }$

$Correlation \ coefficient \ (r) = \dfrac{15 }{10^{1/2} \times 25^{1/2} }$

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

I’m so confused. Need the help

fomenos

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Step-by-step explanation:

Let the centerline of the canal be the x-axis. Because the forces exerted by the horses are symmetric to the centerline, only the x-components of these forces contribute to the resultant force on the barge, i.e., the y-components cancel out. Each x-component is equal to $F_x = 839\cos 15$ = 810.4 N. Therefore, the resultant force on the barge is twice this: