Two angles are complementary. the sum of the first angle plus twice the second angle is 148 degrees. find the measures of the angles.

32° & 58°

Step-by-step explanation:

"Two angles are Complementary" means: x + y = 90

"Sum of the 1st angle plus twice the 2nd angle is 148" means: x + 2y = 148

Solve the system using any method (I am using elimination)

 x +  y =  90   →   -1(x +  y = 90)   →  -x -  y = -90

 x + 2y = 148  →   1(x + 2y = 148)  →  x + 2y= 148

                                                                y = 58

x + y = 90

x + 58 = 90

    -58  -58

x          = 32

42.4

step-by-step explanation:

convert to decimal

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a