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3 years ago

Give the correct model for the situation.

Mathematics

1 answer:

grandymaker [24]3 years ago

3 0

Answer:

Step-by-step explanation:

when it says at least it means ≥ so c is the only on

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Combine the like terms to create an equivalent expression 5n-2n

inysia [295]

Answer:

The answer is 3n

Step-by-step explanation:

Since the expression has two numbers with the same variable, they are able to be combined.

We will subtract 2n from 5n, so 5n - 2n.

This results us with <u>3n</u>, since 5 - 2 equals 3.

#teamtrees #WAP (Water And Plant)

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3 years ago

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An investment website can tell what devices are used to access the site. The site managers wonder whether they should enhance th

hram777 [196]

Answer:

The shape of the sampling distribution for the sample proportion is going to be normal with mean $\mu = 0.42$ and $\sigma = \sqrt{\frac{0.42*0.58}{300}} = 0.0285$ .

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean $\mu$ and standard deviation $\sigma$ , a large sample size can be approximated to a normal distribution with mean $\mu$ and standard deviation $\frac{\sigma}{\sqrt{n}}$

So the shape of the sampling distribution for the sample proportion is going to be normal with mean $\mu = 0.42$ and $\sigma = \sqrt{\frac{0.42*0.58}{300}} = 0.0285$ .

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3 years ago

30 books is 2% of the total books ?

xz_007 [3.2K]

Take 30 and divide it by .2
You will get 150 books

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4 years ago

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5/8x + 10 for x = -8

Afina-wow [57]

Answer by JKismyhusbandbae:

$\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a\\=-\frac{5}{8}\cdot \:8+10\\\frac{5}{8}\cdot \:8=5\\=-5+10\\\mathrm{Add/Subtract\:the\:numbers:}\:-5+10=5\\=5$

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4 years ago

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11 is 40% of whst number

SOVA2 [1]

11 is 40% of 27.5

Change the percentage to a decimal by dividing it over 100:
$\frac{40}{100} = 0.4$

Divide 11 over 0.4:
$\frac{11}{0.4} = 27.5$

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4 years ago

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