Answer: ZB = 48 degree
Explanation:
Complementary angle means 2 angel add together and create a right angle (90 degree).
Thus, ZA + ZB = 90 degree
But ZA = 42 degree
=> 42 degree + ZB = 90 degree
=> ZB = (90 - 42)degree
=> ZB = 48 degree
Solve for x.
x > 3
(It goes to the right, with the starting point open)
22 will be the whole number
15y -8y + 12 = -3
7y = - 15
y = -15/7
or
y = 2.1
