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3 years ago

What is numbers line x<8

Mathematics

1 answer:

drek231 [11]3 years ago

7 0

Answer:

I cant draw it perfectly so please dont judje if it not helpful

Step-by-step explanation:

x<------------------------------------->infinity

So put a dot at the arrow pointing to X and then trace the line and the arrow to infinity dark.

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2/3 of the cost of the sweater is $18

blagie [28]

The total of the sweater is $27.
Divide 18/1 by 2/3. You would get 27. Which means 1/3 of the sweater is $9.
And 2/3 would be $18.

3 0

3 years ago

Solve -27=19-2x for x

alexgriva [62]

(-27-19=-2x) then you add then you get (-46=-2x) divide by -2 you get 23
so x=23

3 0

3 years ago

The heights of the trees in a forest are normally distributed, with a mean of 25 meters and a standard deviation of 6 meters. Wh

Alla [95]

Answer:

2.3%

Step-by-step explanation:

The formula to convert x into z distribution is

$z=\frac{x-\mu}{\sigma}$

Where z is the test statistic

x is what we are looking for (in this case 37)

$\mu$ is the mean (in this case, it is 25)

$\sigma$ is the standard deviation (we have 6)

<em>Plugging these into the formula, we get:</em>

$z=\frac{x-\mu}{\sigma}\\z=\frac{37-25}{6}\\z=2$

Thus we can say we want $P(z\geq 2)$

<u>Note: </u> $P(z\geq a)=1-P(z\leq a)$

The table given is for any z where $P(z\leq a)$

Thus, now we have:

$P(z\geq 2)\\=1-P(z\leq 2)\\=1-0.9772\\=0.0228\\$

0.0228 into percentage is 0.0228 * 100 = 2.28%

Rounded, we get 2.3%

Third answer choice is right.

3 0

4 years ago

Glenn rode his bike for 2 hours

Natali5045456 [20]

Cool. I rode mine for 1.

5 0

3 years ago

Read 2 more answers

Please help!! greatly appreciated

Tom [10]

I think the answer is 43.988

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3 years ago

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