The Pythagorean triple (5, 12, 13) can't be generated from the identity (x2 - 1)2 + (2x)2 = (x2 + 1)2. which has only one variable, because the length of the hypotenuse (13 units) and the length of the longer
of the other two legs (12 units) are not 2 units apart.
Find a two-variable identity by incorporating a second variable, yl into the single-variable identity. Note
that x > 1, x > y, and x and y are positive integers.
Select the correct answer.
o (x2 - y2)2 – (2xy)2
(x2 + y2)
o (x2 + y2)2 + (2xy)2 = (x2 - y2)2
© (x2 - y2)2 + (2xy)2 = (x² + y2)?
o (x2 - y2)2 + (2xy)2 = (x2 - y2)2

As part of an annual fundraiser to raise money for diabetes research, diane joined a bikeathon. the track she biked on was 1,920 yards long. diane biked 38.5 laps. her sponsors agreed to donate an amount of money for each mile she biked. how many miles did she bike? first fill in the blanks on the left side using the ratios shown. then write your answer. given ratios: 5280ft / 1 mi , 1 mi /5280 ft , 1,920 yards / 1 lap , 1 lap / 1,920 yards , 3 ft / 1 yard , 1 yard / 3 ft. blanks: 38.5 laps / 1 yard x (blank) x (blank) x (blank) = (blank) miles i'm really confused on how to do this, and the explanations aren't exactly . if you could walk me through how to do this, it would be greatly appreciated.