For an even function f(x) = f(-x)
So its option A
Answer:
Option C. X=A/4
Step-by-step explanation:
we know that
The area of the rectangular post it note is equal to

where
L is the length
W is the width
In this problem we have


substitute

solve for x
That means ----> isolate the variable x
Divide by 4 both sides

They are both fractions, but 3/3 is 1 whole and 4/4 is 1 whole also.
so 1 whole times 1 whole equals 1
number form of my explanation:
3/3=1
4/4=1
1x1=1
Describe complete!
The boy is 15 because twice the age of his sister is 12, then you add the three years to it and get 15