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2 years ago

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What is the constant of variation, k, of the direct variation, y = kx, through (5, 8)? k = – k equals negative StartFraction 8 O

ver 5 EndFraction. k = – k equals negative StartFraction 5 Over 8 EndFraction. k = k equals StartFraction 5 Over 8 EndFraction. k = k equals StartFraction 8 Over 5 EndFraction.

2 answers:

Reil [10]2 years ago

3 0

The value of constant of variation "k" is $k = \frac{8}{5} \text{ or } 1.6$

<em><u>Solution:</u></em>

Given that the direct variation is:

y = kx ----- eqn 1

Where "k" is the constant of variation

Given that the point is (5, 8)

<em><u>To find the value of "k" , substitute (x, y) = (5, 8) in eqn 1</u></em>

$8 = k \times 5\\\\k = \frac{8}{5}\\\\k = 1.6$

Thus the value of constant of variation "k" is $k = \frac{8}{5} \text{ or } 1.6$

emmainna [20.7K]2 years ago

3 0

Answer:

c) k = 5/8

Step-by-step explanation:

edgen 2020

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Given that Jessica attends summer camp at a distance of four hundred twenty-three and four tenth mile = $423\frac{4}{10} = 423 + \frac{4}{10} = 423+0.4 = 423.4 miles$

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2 years ago

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Step-by-step explanation:

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On comparing (1) and (2), we get

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2 years ago

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Substitute given values:

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$n\geq (\frac{0.098}{0.01})^2$

$n\geq (9.8)^2$

$n\geq 96.04$

Therefore, the sample size must be 97 in order to be 95% confident that the error in his estimate of mean reaction time will not exceed 0.01 seconds.

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2 years ago

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Answer:

Step-by-step explanation:

Answer:

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Step-by-step explanation:

The given options are:

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B) y = -x² - 18x - 88

C) y = -x² + 18x - 74

D) y = -x² - 14x - 58

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2 years ago

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