2 years ago

Which table shows a function that is decreasing only over the interval (–1, ∞)?

Mathematics

1 answer:

alexgriva [62]2 years ago

6 0

Answer:0,1

Step-by-step explanation:

1 is the number in the x column that is in the same area as 0 they r vertical to each other

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A manager records the repair cost for 4 randomly selected stereos. A sample mean of $82.64 and standard deviation of $14.32 are

zysi [14]

Answer:

CI = (70.861 , 94.418)

Step-by-step explanation:

In order to determine the 90% confidence interval you use the following formula (for a population approximately normal):

$CI=(\overline{x}-Z_{\alpha/2}\frac{\sigma}{\sqrt{n}},\overline{x}+Z_{\alpha/2}\frac{\sigma}{\sqrt{n}})$ (1)

$\overline{x}$ : mean = 82.64

σ: standard deviation = 14.32

n: sample = 4

α: tail area = 1 - 0.9 = 0.1

Z_α/2 = Z_0.05: Z factor = 1.645

You replace these values and you obtain:

$Z_{0.05}(\frac{14.32}{\sqrt{4}})=(1.645)(\frac{14.32}{\sqrt{4}})=11.778$

The confidence interval will be:

$CI=(82.64-11.778,82.64+11.778)=(70.861,94.418)$

The 90% confidence interval is (70.861 , 94.418)

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3 years ago

During a thunderstorm yesterday, 600 millimeters of rain fell in 30 minutes. What is the unit rate for millimeters per minute?

blagie [28]

Answer:

I think it would be 50 millimeters per second

Step-by-step explanation:

600/30

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3 years ago

Read 2 more answers

select all the faces of the right rectangle that have the same shape and dimensions as the cross section shown

Paul [167]

Where’s the picture?

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3 years ago

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Subtract x + 6 from −3x − 4.<br> A) −4x − 10 <br> B) 4x + 10 <br> C) −2x + 2 <br> D) −x + 10

Yuliya22 [10]

The correct answer will be -4x - 10 which is A. X subtracts to the other side and makes it -4x, then 6 +-4 = -10

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3 years ago

A green number cube and a red number cube are rolled. An outcome is the pair of numbers rolled on the two different cubes. Which

Ber [7]

Answer:

None of the above

Step-by-step explanation:

The common ratio 10 means we are starting with 4.5 and multiplying that by 10 each time:

4.5*10=45

45*10=450

450*10=4500

As you can see, this does not match any of the answers

Read more on Brainly.com - brainly.com/question/14993026#readmore

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3 years ago