1 year ago

URGENT! PLEASE ANSWER IF YOU ACTUALLY KNOW THE ANSWER!

Mathematics

1 answer:

Zepler [3.9K]1 year ago

4 0

Answer:

C. x + y = 4

Step-by-step explanation:

hard to explain sorry T-T and im really tired lolol

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Elisa needs 40 shirts for a charity. One store is selling shirts for $6.95 each. Another store says that the total for al 40 shi

xxTIMURxx [149]

Well, let us figure out what the first store will cost.
40*6.95=278
Now for the second store
325*0.8=260

So the first store is $278, while the second store is $260, so Elisa should buy shirts from the second store

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2 years ago

Please help wuth math 25 points

lesya692 [45]

The answer is A-(2,-1)

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2 years ago

David has 30 sweets. He gives Sarah of his sweets and Joe 20% of his

gayaneshka [121]

Answer:

Step-by-step explanation:

20 percent of 30 is 6

30-6=24

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1 year ago

The u.s. department of health and human services collected sample data for 772 males between the ages of 18 and 24. that sample

soldier1979 [14.2K]

The 99% confidence interval for the true mean is given by:

$\bar{x}\pm z_{\alpha/2} \frac{\sigma}{\sqrt{n}}$

where:

$\bar{x}$ is the sample mean = 69.7
$\sigma$ is the standard deviation = 2.8
$z_{\alpha/2}$ is the test statistics = 2.58 for for 99% confidentce interval.
n is the sample size = 772.

Therefore, the 99% confidence interval is:

$69.7\pm2.58\left( \frac{2.8}{\sqrt{772}} \right)=69.7\pm2.58(0.1008) \\ \\ =69.7-0.26\leq\mu\leq69.7+0.26 \\ \\ =69.44\leq\mu\leq69.96$

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2 years ago

Read 2 more answers

3 8<br> - ÷ - what is that<br> 4 9

Komok [63]

The answer would be:

Fraction: 27/32

Decimal: 0.84375

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2 years ago