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2 years ago

11

I neeeeeeeeeeeeeeeeeeddddddddddddddd helpppp

1 answer:

SVETLANKA909090 [29]2 years ago

6 0

Answer:

Option D

Step-by-step explanation:

Given the following question:

Product costs: $90
Monthly bills: $2,300
Manufacturing costs: $75

How much profit did they make in one month if they sold 495 units?

In order to find the answer, we first need to multiply the cost of the product by the units sold last month, then subtract the bills/manufacturing costs.

One unit = 90 dollars
495 units sold last month

$90\times495=44550$
$=44550$

The company made 44,550 from the product last month.

<u>Now apply the fees/costs:</u>
2,300 dollars in monthly costs
75 dollars in manufacturing costs PER UNIT

$44550-2300=42250$
$75\times495=37125$
$42250-37125=5125$
$=5125$

Which means the company made a total profit of "$5,125 dollars" or option D last month.

Hope this helps.

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A sample of 5 buttons is randomly selected and the following diameters are measured in inches. Give a point estimate for the pop

Helen [10]

Answer:

$s^2 = \frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}$

But we need to calculate the mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_I}{n}$

And replacing we got:

$\bar X = \frac{ 1.04+1.00+1.13+1.08+1.11}{5}= 1.072$

And for the sample variance we have:

$s^2 = \frac{(1.04-1.072)^2 +(1.00-1.072)^2 +(1.13-1.072)^2 +(1.08-1.072)^2 +(1.11-1.072)^2}{5-1}= 0.00277\ approx 0.003$

And thi is the best estimator for the population variance since is an unbiased estimator od the population variance $\sigma^2$

$E(s^2) = \sigma^2$

Step-by-step explanation:

For this case we have the following data:

1.04,1.00,1.13,1.08,1.11

And in order to estimate the population variance we can use the sample variance formula:

$s^2 = \frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}$

But we need to calculate the mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_I}{n}$

And replacing we got:

$\bar X = \frac{ 1.04+1.00+1.13+1.08+1.11}{5}= 1.072$

And for the sample variance we have:

$s^2 = \frac{(1.04-1.072)^2 +(1.00-1.072)^2 +(1.13-1.072)^2 +(1.08-1.072)^2 +(1.11-1.072)^2}{5-1}= 0.00277\ approx 0.003$

And thi is the best estimator for the population variance since is an unbiased estimator od the population variance $\sigma^2$

$E(s^2) = \sigma^2$

3 0

3 years ago

Pleasseeee help I'll give you brainlest answer

guapka [62]

Hope you use this to learn!

5 0

3 years ago

the money used in south Africa is is called the rand . the estrange rate 7 rand for $1. Find how many dollars you would receive

Tasya [4]

Answer:

$3

Step-by-step explanation:

21 rand * ($1/7 rand) = $3

4 0

2 years ago

Heeeeelppp please, :) please

lara [203]

Answer:

7/6

Step-by-step explanation:

In order to find slope when you have two ordered pairs, you use this equation: (y2-y1)/(x2-x1)

In this case, when you plug them in, you get (49-7)/(42-6), which is 42/36, which is 7/6.

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3 years ago

1. If u were to draw a tree diagram showing all the possible outcomes for rolling a six sided die twice, how many total outcomes

Furkat [3]

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3 years ago