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3 years ago

Please Help!! 35 Points!!!

Mathematics

1 answer:

Olegator [25]3 years ago

7 0

$\frac{1}{2}$ > $\frac{2}{5}$

The wider/open part of the symbol (aka the mouth) faces the larger number, which in this case is $\frac{1}{2}$ .

Hope this helped!

~Just a girl in love with Shawn Mendes

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If 5/8 yards of fabric costs 3.75 dollars what does one yard cost

Sladkaya [172]

3.75 / 5 =0.75
0.75 x 8 = 6
So one yard is 6
Sorry, I’m not American so I don’t know about dollars but this should be correct x

4 0

2 years ago

Carmen works at a pet store.To feed 8 cats, she empties four 6-ounce cans of cat food into a large bowl.Carmen divides the food

balu736 [363]

Answer:

0.75 oz

Step-by-step explanation:

8 cats divided by 6-oz cans=0.75 oz each

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2 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 - α)% 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 z 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

2 years ago

Distributive property to rewrite the following expression n(r + s)

mel-nik [20]

It would be, nr + ns

4 0

2 years ago

Read 2 more answers

Why did farmer jones keep the chickens away frome the other animals

max2010maxim [7]

Answer:

The farmer jones keep the chickens away frome the other animals because the chickens are using "fowl" language!!!!!

The answer to your math sheet is a play on words, please check the picture attached for the complete solution.

The joke is that 'fowl' is another word for 'chicken' but at the same time is similar to 'foul' which is a bad word!

8 0

2 years ago