3 years ago

...............................

Mathematics

1 answer:

antoniya [11.8K]3 years ago

4 0

Answer:

Option C is the correct option.

Step-by-step explanation:

√ 8 • √ 5

Calculate the product

$= \sqrt{40}$

Simplify the radical expression

$= \sqrt{2 \times 2 \times 10}$

$= 2 \sqrt{10}$

Hope this helps...

Best regards!!

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Simplify 8x + 4 - y + x + 17.

zmey [24]

Answer:

9x-y+21

Step-by-step explanation:

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3 years ago

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The mean value of 500 homes in a county is $225,000 and the standard deviation is $25,000. approximately how many of the homes i

dusya [7]

240 homes in the county are between $175,000 and $225,000.

The image attached is associated with this question and m in it refers to the mean value which is $225000 here and d refers to the standard deviation which is $25000 here.

Now since m= $225000

and $175000= $225000-$50000= $225000-(2* $25000)= m-2d

Thus, as per the image area covered between m and m-2d= $225000

and $175000 is (34%+14%)of 500 homes= 68% of 500= 240 homes, is the answer.

A random variable X is said to follow a normal distribution if its parameters are mean and standard deviation. Every other distribution can be reduced to a normal distribution.

Learn to know more about normal distributions on brainly.com/question/4079902

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