Answer:
x=8
Step-by-step explanation:
This isosceles triangle is composed of two right triangles with sides 8,
, and y
As we have two sides of a right triangle, we can find the third using the Pythagorean Theorem

As this is an isosceles triangle, these two right triangles are equal, this means that x=2y
Therefore, x=2(4)=8
Any repeated fraction is written as the number devided by nine(s).
for example
0.1111... =1/9
0.23232323... = 23/99
so the given number= -2 -7/9 = -25/9
I would try Khan Academy. He does very good explainations
22=1/2*4(6+b)
22=2(6+b)
22=12+2b
10=2b
Divide both sides by 2:
b=5
The answer is b.
Hope this helps :)