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aliina [53]
3 years ago
5

Help! Find the value of X and simplify completely.

Mathematics
2 answers:
Svetach [21]3 years ago
8 0

Answer:

x = 8√5

Step-by-step explanation:

In the figure attached, there are three right angle triangles.

So, by Pythagoras theorem,

y²+ 4² = z²

y² + 16 = z²------(1)

Similarly x² = 16² + y²--------(2)

and (16 + 4)² = x² + z²

20² = x² + z²-------(3)

Now we put the value of z² from equation 1 to equation 3

20² = x² + y² + 16

x² + y² = 400 - 16

x² + y² = 384

y² = 384 - x²------(4)

Now we put the value of y² from equation 4 to equation 2

x² = 16² + 384 - x²

2x² = 256 + 384

2x² = 640

x² = 320

x = 8√5

Therefore x = 8√5 will be the answer.

Gemiola [76]3 years ago
4 0

Answer:

x = 8√3

Step-by-step explanation:

y /4 = 16/y

y^2 = 64

y = 8

x^2 = 16^2 - 8^2

x^2  = 256 - 64

x^2 = 192

x = √192

x = √(64 * 3)

x = 8√3

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statuscvo [17]
We have the following equation:
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3 years ago
If y=15 when x=3/4, find x when y =25. Show work please!
-BARSIC- [3]

Set up a proportion: x/y = x/y

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(.75)(25) = (15)(x)

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There you go :)

6 0
3 years ago
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muminat

Answer:

I think the answer is -32.

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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The total possible outcome is 4, because the spinner could land on 1, or 2, or 3, or 4.

It can only land on 2 once, so the possibility of it landing on 2 is 1.

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7 0
3 years ago
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