Answer:
400
Step-by-step explanation:
USE CALCULATOR -_-
<em><u>STAN </u></em><em><u>TREASURE</u></em>
The correct answer is A
A=55
B=80
C= x
So always the sum of the angles of a triangle should be 180 so
55+80+x=180
135+x=180
X= 180-135=45
Therefore, angle C = 45
f(x) = (x - 4 )(x - 6) = 0
because you can see when each factor is equal to zero
x - 4 = 0 ⇒ x = 4
x - 6 = 0 ⇒ x = 6
