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Valentin [98]
3 years ago
10

Which number below is a perfect square? 15 19 16 20 ​

Mathematics
2 answers:
Vlad1618 [11]3 years ago
7 0

Answer:

16

Step-by-step explanation:

4 x 4=16

vlada-n [284]3 years ago
6 0

Answer:

16

Step-by-step explanation:

4x4=16

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Please explain it. and no links. <br> thanks.
Nimfa-mama [501]

Answer:  4*sqrt(66)

This is the same as saying 4\sqrt{66}

===========================================================

Explanation:

x = length of segment BD

Because BD is an altitude of triangle ABC, this means the triangle is split into two smaller right triangles which are similar to the original. All three right triangles are similar to one another.

What this leads to is the proportion

CD/BD = BD/AD

Apply substitution and solve for x.

24/x = x/44

24*44 = x*x .... cross multiply

1056 = x^2

x = sqrt(1056)

x = sqrt(16*66)

x = sqrt(16)*sqrt(66)

x = 4*sqrt(66)

Notice how I factored 1056 in such a way that I pulled out the largest perfect square factor (16). Then I used the rule \sqrt{x*y} = \sqrt{x}*\sqrt{y}&#10; to break up the root.

6 0
2 years ago
Find the volume of the figure shown below.
san4es73 [151]

Answer:

A. 42½ units

Step-by-step explanation:

the volume = 5×2×4¼ = 10×4¼ = 42½

3 0
3 years ago
Find the value of x please help
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9514 1404 393

Answer:

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Step-by-step explanation:

The right triangles are all similar, so the ratios of long to short ides are the same:

  x/6 = 6/3

  x = 6(6/3) . . . multiply by 6

  x = 12

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C .) The - 3 at the end of the function means the function is shifted down 3 units. This also shifts the asymptote down 3 units.

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