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Likurg_2 [28]
3 years ago
10

Square roots question??

Mathematics
2 answers:
adelina 88 [10]3 years ago
5 0
Two things you need to know.
a square root that is squared becomes the number under the root  sign
the general formula is a^2 + 2ab + b^2
sqrt(5)^2 + 2*sqrt(5)*sqrt(3) + sqrt(3)^2
5 + 2sqrt(15) + 3 
8 + 2sqrt(15) <<<<=====
Stop! 
Don't go any further. That is your answer.
cluponka [151]3 years ago
3 0

√5²+2*√5*√3+√3²

5+7.7+3

15.7

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Leto [7]

Answer:

x=12, y= 20

Step-by-step explanation:

We can find x using the pythagorean thereom because ABD is a right triangle.(D is the point between segments with legnth 5 and 11)

AC^2 + CD^2 = AD^2

x^2 + 5^2 = 13^2

x^2 = 25 = 169

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We may now find y using the pythagorean thereom because ABC is a right triangle. Right now we know x = 12

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y^2 = 400

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<em>I hope this helps! :)</em>

5 0
3 years ago
A newspaper stand sold 1000 copies of the city newspaper for $1600. Write and solve an equation to find the price of one copy.
Goshia [24]
Simple. just do this:
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8 0
3 years ago
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Zepler [3.9K]

Answer:

a= d and b= b

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We can calculate for the slope of the line using the formula:

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From the given values:

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This means that the altitude is decreasing by 400 ft per minute.

 

 

> The slope is –400 . This means that the helicopter descends 400 ft each minute.

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3 years ago
Deviance is best defined as
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Answer:

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Step-by-step explanation:

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