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3 years ago

Pls help I need a good grade I’ll add extra points

Mathematics

1 answer:

valina [46]3 years ago

4 0

Answer:

Step-by-step explanation:

you have to write about the remaining people if they had gas problems and write what happened next maybe he was arrested for the sauce made Thanks

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A company needs 713 slices of pizza for a company party. If each pizza is cut into 8 slices, about how many whole pizzas should

alukav5142 [94]

Answer:

Step-by-step explanation:

To find the number of WHOLE pizzas needed, we need to divide the total number of slices needed (713) by 8 slices. Thus

$\frac{713}{8}=89.125$

<em>because we can't order fractional pizza, we need to round up. So we will need 90 pizzas.</em>

<em>Correct answer is D.</em>

3 0

3 years ago

-10/3 y -1/5 se convierte en...

blsea [12.9K]

This is the correct answer is

8 0

3 years ago

Ten engineering schools in the United States were surveyed. The sample contained 250 electrical engineers, 80 being women; 175 c

steposvetlana [31]

Answer:

There is a significant difference between the two proportions.

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for difference between population proportions is:

$CI=(\hat p_{1}-\hat p_{2})\pm z_{\alpha/2}\times\sqrt{\frac{\hat p_{1}(1-\hat p_{1})}{n_{1}}+\frac{\hat p_{2}(1-\hat p_{2})}{n_{2}}}$

Compute the sample proportions as follows:

$\hat p_{1}=\frac{80}{250}=0.32\\\\\hat p_{2}=\frac{40}{175}=0.23$

The critical value of <em>z</em> for 90% confidence interval is:

$z_{0.10/2}=z_{0.05}=1.645$

Compute a 90% confidence interval for the difference between the proportions of women in these two fields of engineering as follows:

$CI=(\hat p_{1}-\hat p_{2})\pm z_{\alpha/2}\times\sqrt{\frac{\hat p_{1}(1-\hat p_{1})}{n_{1}}+\frac{\hat p_{2}(1-\hat p_{2})}{n_{2}}}$

$=(0.32-0.23)\pm 1.645\times\sqrt{\frac{0.32(1-0.32)}{250}+\frac{0.23(1-0.23)}{175}}\\\\=0.09\pm 0.0714\\\\=(0.0186, 0.1614)\\\\\approx (0.02, 0.16)$

There will be no difference between the two proportions if the 90% confidence interval consists of 0.

But the 90% confidence interval does not consists of 0.

Thus, there is a significant difference between the two proportions.

4 0

3 years ago

Compute 0-((5)(-1)+(5)(-2)+(5)(-3)+(5)(-4)).

alexandr1967 [171]

The value of 0-((5)(-1)+(5)(-2)+(5)(-3)+(5)(-4)) is -40

<h3>What are integers?</h3>

An integer is a whole number (not a fractional number) that can be positive, negative, or zero.

Given:

0-((5)(-1)+(5)(-2)+(5)(-3)+(5)(-4))

= 0+5-10-15-20

=5-25-20

= -40

Hence, value of 0-((5)(-1)+(5)(-2)+(5)(-3)+(5)(-4)) is 40.

Learn more about integers here:

brainly.com/question/1768254

#SPJ1

6 0

2 years ago

a chemistry lab, you have 2 vinegars. One is 5% acetic acid, and the other one is 6% acetic acid. You want to make 200 ml of vin

BigorU [14]

0.5*x+0.6*y=0.6(200) where x is quantity of 1st and y is 2nd vinegar.

so, 5x+6y=6(200)=1200
5x+6y=1200......(1)
x+y=200..........(2)

(1)-5*(2)⇒y=1200-1000=200,x=0

so, you just take 200 ml of second vinegar. In fact, this calculation can be skipped coz we were asked the 2nd vinegar directly in the question.

7 0

3 years ago