Answer:
The answer is 1/12.
Step-by-step explanation:
Answer:
OPTION C
Step-by-step explanation:
IN OPT. A- 2 IS MULTIPLED IN EACH NO.
IN OPT.B-2 IS MULTIPLED
IN OPT.D-1 IS ADDED
IN OPT.E-2 IS ADDED
<u>Answer:</u>
a= 4
b= 8
c= 4
<u>Step-by-step explanation:</u>
<em>45-45-90 triangle </em>
x - x - 
30-60-90 triangle
x - 2x - x

is the formula for calculating x1 and x2
To prove x1 + x2 = -b/a all we need to do is to express x1 and x2 from equation above
once we do we will get -2b/2a which is equal to -b/a because square root part will negate each other. one has + sign in front and other - sign
Showing that x1x2 = c/a goes similar way.
the numerator parts is actually difference of squares. after that we will have:
-b^2 -b^2 + 4ac = 4ac
in denominator we have 2a*2a = 4a^2
4ac/4aa = c/a