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Brilliant_brown [7]
3 years ago
15

Find the value of x in the isosceles triangle shown below.

Mathematics
2 answers:
emmainna [20.7K]3 years ago
8 0

Answer:

x = \sqrt{26}

Step-by-step explanation:

using pythagoras theorem

here \sqrt{13} and \sqrt{13} are the legs of the right angled triangle and x is hypotenuse.

a^2 + b^2 = c^2

(\sqrt{ 13 })^2 + (\sqrt{13})^2 = x^2

13 + 13 = x^2

26 = x^2

\sqrt{26} = x

stira [4]3 years ago
3 0

Answer:

answer would be c

Step-by-step explanation:

hope this helps

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3 years ago
8x+3y= 28 and 7x-3y=2<br>solve for x and y simontaniasly using elimination ​
EleoNora [17]

Answer:

x=2, y=4

Step-by-step explanation:

When using elimination, the objective is to elimate one variable. In this case, we see that "y" can easily be eliminated by adding the two equations together since you will get 3y + (-3y) which will eliminate y because the value would become 0, letting us solve for x.

\left \{ {{8x+3y=28} \atop {7x-3y=2}} \right. +\\

Then we get

15x =30, because the y's will eliminated, and 8x+7x is 15x, and 28+2 is 30.

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So the answer to your system of equations would be x=2, and y=4

You can substitute the answers we found to see that they satisfy the equation.

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3 years ago
What is the domain of the function y=2 x-5?<br> O x&gt;-5<br> O x&gt;2<br> O x&gt;5<br> O x&gt;10
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