Solve for z.
12 = 15 ( z - 1/5 )

1=z

Step-by-step explanation:

Multiply 15 to the parenthesis.  

12=15z-15/5

12=15z-3

Add 3 to both sides

15=15z

Simplify

1=z

2 x^2 -3x+p

sum of roots = 3/2

let other root be x

3+ x = 3/2

x= 3/2 - 3 = -3/2

product of roots = p/2

3× -3/2 = p/2

-9 = p

⭐⭐

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: