Answer:
5
Step-by-step explanation:
Whenever there are problems that have ladders leaning on a buildings, you have to know that is makes a right triangle.
3^2 + (x-1)^2 = x^2
(x-1)(x-1) = x^2 - 2x + 1
9 + x^2 -2x +1 = x^2
-x^2 -x^2
---------------------------------
-2x +10 = 0
-10 -10
---------------------
-2x=-10
-2x/2 -10/2
x=5 (the length of the ladder)
142
Here's link to the answer:
linkcutter.ga/gyko
224
1/2x+4=1/8x+88
1/2x-1/8x+4=88
1/2x-1/8x=88-4
4/8x-1/8x=84
3/8x=84
x=84/(3/8)
x=(84/1)(8/3)
x=672/3
x=224
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