Max has sticks of lengths 6, 7, 8, and 10 inches. he wants to make a right triangle for an art project. which 3 sticks should he use?

So this is where the Pythagorean theorem comes in: a squared + b squared = c squared. 

One of the basic pythagorean triangles is the 3-4-5 triangle and you can use any multiples of that triangle and get a right triangle (like multiple 3-4-5 by 2 to get a 6-8-10 right triangle, multiple 3-4-5 by 3 to get a 9-12-15 triangle, etc). 

So you could do 6, 8, and 10. 6 squared is 36, 8 squared is 64, and 10 squared is 100. 36 + 64 = 100, so it works. 

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

X=14 hope it !