The length of the support cable is about 29 feet.
If you sketch out the question, you will see that it will form a right triangle with the cable as the hypotenuse.
Just set up and use the Pythagorean Theorem.
15^2 + 25^2 = c^2
850 = c^2
29.15 = c
67 is the larger one because that is the right answer or it could be 6
They are all the same amount of blocks.
What multiplies to 25 and adds to -10
-5 and -5
(x-5)(x-5)
(x-5)²