3. An isosceles right triangle is a right triangle with congruent legs. If the length of each leg is represented by x, what algebraic expression can be used to represent the length of the hypotenuse? Explain your reasoning please don't answer if you don't know

Step-by-step explanation:

right triangle means Pythagorean theorem!

a^2+b^2=c^2

if each leg (a and b) = x, then

x^2+x^2=c^2

2x^2=c^2

solving for c by taking the square root of both sides leaves

c=x×sqrt(2)

c must be positive since its a length, so no need for a +- I. this case

b i think

step-by-step explanation:

not really sure

the answer would be c:   ax + b = ax + c

step-by-step explanation: