Cant figure this out help I’m being timed

you need to find angle 3

angle 3 = 133

Step-by-step explanation:

all interior angles add up to 180

90 + 43 = 133

180 - 133 = 47

now you know angle one so you can figure out angle 3

do 180 - 47 = 133

so angle 3 isis 133

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

you need to add a picture