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2 years ago

HELP PLEASE?? picture included to understand the question

Mathematics

1 answer:

aleksklad [387]2 years ago

6 0

Answer:

$77, 456

Step-by-step explanation:

Let P(x) = profit

P(x) = revenue - cost

⇒ P(x) = (952x - 0.68x²) - (-153x + 371450)

⇒ P(x) = -0.68x² + 1105x - 371450

Differentiate P(x)

⇒ P'(x) = -1.36x + 1105

Set P'(x) = 0 and solve for x:

⇒ -1.36x + 1105 = 0

⇒ 1.36x = 1105

⇒ x = 812.5

Therefore, maximum profit when x = 812.5

Substitute x = 812.5 into P(x):

P(812.5) = -0.68(812.5)²+ 1105(812.5) - 371450 = 77456.25

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uppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.2 and a standard deviation of 1.49. Us

liubo4ka [24]

Answer:

99.85% of American women have shoe sizes that are less than 12.67

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 8.2

Standard deviation = 1.49

Using the empirical rule, what percentage of American women have shoe sizes that are less than 12.67

12.67 = 8.2 + 3*1.49

12.67 is 3 standard deviations above the mean.

Since the normal distribution is symmetric, 50% of the measures are below the mean and 50% are above. Of those 50% above, 99.7% are between the mean and 12.67. So

0.5 + 0.997*0.5 = 0.9985

99.85% of American women have shoe sizes that are less than 12.67

6 0

3 years ago

Cann someone please help mee

xxMikexx [17]

Answer:

this is the answer

Step-by-step explanation:

42.7893

4 0

3 years ago

Read 2 more answers

Write each exponential function. <br>

Dmitriy789 [7]

Answer:

0,4 1,2 2,1 3.5 4.25

Step-by-step explanation:

because i know

6 0

3 years ago

9th grade- Point slope of line. Please explain how to do this, I got it wrong. I need an explanation cause I haven’t done it in

Andrei [34K]

Answer:

The answer would be C

Step-by-step explanation:

You were going in the right direction but the problem was that you needed to subtract and not add. The formula should be y-y1 / x-x1 iirc. Hope this helped.

4 0

2 years ago

Find the slope, Y-intercept, and equation (make sure there is no decimals if there is a decimal make it into a fraction)!

adelina 88 [10]

Answer:

Slope is 5/3

y-intercept = -3

y = 5/3x - 3

Step-by-step explanation:

To find the slope, take to coordinates and use the equation below

$m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1}$

7-2 = 5

6-3= 3

Now you have your slope which is 5/3

Then take the slope and input it into point slope form to get your y-intercept.

y-y₁=m(x-x₁)

y-2 = 5/3(x-3)

y-2=5/3x-5

add two to both sides to get Y by itself

y = 5/3x - 3

now you have your y-intercept, which is -3

Then check your answer by inputing two different coordinates for X and Y

7 = 5/3(6)-3

7=7

12= 5/3(9)-3

12=12

6 0

3 years ago