Use the expansion shown to simplify the expression. 1/2 (3 x -2/3y) + 3 (x/2 + 1/2y)

= (1/2) (3/1x) + (1/2) (-2/3y) + (3/1) (1/2x) + (3/1) (1/2y)

= (3/2x) + (-1/3y) + (3/2x) + (3/2y)

= 3x + y​

correct answer is b. 27/8

step-by-step explanation:

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.

#12 the answer is the third option