The equation 1/7n−4n=1/3n is true for all values of n where n ≠ 0. Is the equation an identity? A. No; it is not true for all values of n.
B. No; the equation has no solution.
C. Yes; it is true for most values of n.
D. Yes; it is true for every possible value of n.

Hey! So you’re gonna need to use the Pythagorean Theorem (a^2 + b^2 = c^2).
You’re looking for one of the legs here, so after inputting the values your equations should look like this: 6^2 + b^2 = 10^2.
Next, find what the numbers squared are: 36 + b^2 = 100.
Then, isolate the variable: b^2 = 64.
Lastly, square root both sides: √b^2 = √64.
You should find the answer is 8.