Please help! The Pythagorean Identity states that:
(sin x)2 + (cos x)2 = 1
Given sin 0 = 5/6, find cos 0.
cos 0 =
Simplify the fraction.

cos θ =

Step-by-step explanation:

Substitute sin θ = into the identity

( )² + (cos θ )² = 1

+ (cos θ )² = 1

(cos θ )² = 1 - = ( take the square root of both sides )

cos θ = =

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%