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4 years ago

PLEASE HELP ASAP !! UPVOTING What is the direct linear variation equation for the relationship?

Mathematics

1 answer:

STALIN [3.7K]4 years ago

7 0

Y is varies directly to x
y=kx
10=2k
k=5
y=5x

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Store A uses the newsvendor model to manage its inventory. Demand for its product is normally distributed with a mean of 500 and

ra1l [238]

Answer:

$P(X$

Step-by-step explanation:

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Let X the random variable that represent the Demand for its product on this case, and for this case we know the distribution for X is given by:

$X \sim N(\mu=500,\sigma=300)$

And let $\bar X$ represent the sample mean, the distribution for the sample mean is given by:

$\bar X \sim N(\mu,\frac{\sigma}{\sqrt{n}})$

What is its in-stock probability if Store A’s order quantity is 800 units?

We are looking for this probability:

What is its in-stock probability if Store A’s order quantity is 800 units?

So we can find the following values:

$P(X>800)$ and $P(X$

Sor this problem we can use the z score formula given by:

$z=\frac{x-\mu}{\sigma}$

If we find the z score for the value 800 we got:

$z=\frac{800-500}{300}=1$

And if we find:

$P(X$

And by the complement rule:

$P(X>800)=1-P(X$

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3 years ago

The formula for the area of a triangle is A = bh, where b is the length of the base and h is the height. The equation solved for

mylen [45]

The answer is: " h = A / b " .
_________________________________________________________
Explanation:
_________________________________________________________
Given: " A = bh " ; Solve for "h" ;
_________________________________________________________

A = bh ;

↔ bh = A ;

Divide each side of the equation by "b" ; to isolate "h" on one side of the equation; & to solve for "h" ;

→ (bh) / b = A / b ;

to get:

→ h = A / b .
_________________________________________________________
The answer is: " h = A / b " .
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4 years ago

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disa [49]

(x + 9)(x – 1) = 0. x = -9 or x = 1

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4 years ago

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Solve by using elimination. Express your answer as an ordered pair.

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Answer:

(-2, 5)