41. Consider the perimeter of the triangle shown. First, find the length of the hypotenuse.

Use the Pythagorean theorem!

This principle applies to any right triangles.

This states the relationship between the sides that

(7)² + (24)² = x²

All you have to do is simplify at this point.

49 + 576 = x²

625 = x²

√        √

x = 25

You should try to memorize this right triangle. It can be very helpful in fast questionnaires, such as the SAT.

I know bionomial theorem
pascal's triangle would be eseir though

pascal's triangle
1              0
1 1            1
1 2 1        2
1 3 3 1       3
1 4 6 4 1    4

those are the coefieicnets
in (a+b)^3
1a^3+3a^2b+3ab^2+1b^3 so

(6+x)^3=6^3+3(6^2)x+3(6)x^2+1x^3=

and this is all under 3