BAD BIA..TCHES I NEED YOUR HELP ASAP NO ROCKY

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true