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3 years ago

10

What is order least to greatest out of 2.54,20/9,32/15,2.62

2 answers:

Whitepunk [10]3 years ago

5 0

The order is:
2.62, 2.54, 20/9, 32/15

Marizza181 [45]3 years ago

3 0

Answer:

The correct answer is 32/15,20/9,2.54,2.62

Step-by-step explanation:

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Please help me solve this!!

lyudmila [28]

Answer:

$x=\sqrt{-2},or,x=\sqrt{2}i$

Step-by-step explanation:

$-3x^2+11=17\\-3^2+11-(11)=17-(11)\\-3x^2=6\\x^2=-2\\x=\sqrt{-2}$ I don't know what level math you're taking but in lower level math this would be undefined, can't be simplified. But some higher levels simplify it with imaginary or complex number representations. So take your pick, but it's still undefined
$x=\sqrt{2}i$

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3 years ago

A population of values has a normal distribution with μ = 247 and σ = 62.2. You intend to draw a random sample of size n = 16. (

nadya68 [22]

Answer:

a) $z = \frac{295.2-247}{62.2}=0.772$

And using the normal distribution table or excel we got:

$P(Z>0.772) = 1-P(Z$

b) $z = \frac{295.5 -247}{\frac{62.2}{\sqrt{16}}}= 3.119$

And we can use the normal standard table or excel in order to find the probability and we got:

$P(z>3.119) =1-P(Z$

Step-by-step explanation:

For this case we know that the random variable of interest is normally distributed with the following parameters:

$X \sim N (\mu = 247, \sigma =62.2)$

Part a

We want to find this probability:

$P(X>295.2)$

And we can use the z score formula given by:

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

Replacing we got:

$z = \frac{295.2-247}{62.2}=0.772$

And using the normal distribution table or excel we got:

$P(Z>0.772) = 1-P(Z$

Part b

We select a random sample of size n = 16 and we try to find this probability:

$P(\bar X >295.2)$

And we can use the z score formula given by:

$z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}$

And replacing we got:

$z = \frac{295.5 -247}{\frac{62.2}{\sqrt{16}}}= 3.119$

And we can use the normal standard table or excel in order to find the probability and we got:

$P(z>3.119) =1-P(Z$

8 0

3 years ago

Please help answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!!!!!!

Ber [7]

Answer:

3+3(2)=9?

Step-by-step explanation:

4 0

3 years ago

Geometry. will award brainliest :)

Dmitriy789 [7]

Answer:

fhduuiggg yyyy hhgg hgfff gggdd yhgfd

7 0

3 years ago

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A community pool that is shaped like a regular pentagon needs a new cover for the winter months. The radius of the pool is 20 ft

-BARSIC- [3]

The correct answer is 960 ft^2
I just took the test ;)

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4 years ago

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