All of the following expressions are equal except .

2^-3
8
1/8
2^1/2^4

2^-3 = 0.125

1/8 = 0.125

2^1/2^4 = 0.125

All of these expression are equal except 8.

Step-by-step explanation:

9

step-by-step explanation:

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.