Step-by-step explanation: x= 2-y then plug that in for x so y= 2-y+2;
y=4-y; -4y=-y; y=-1/4
Answer:

Step-by-step explanation:
The given function is

To find F(2), we substitute t=2 into the function.
This means that wherever we see t, we put 2

We multiply the exponent in the denominator to get:

We evaluate to get:

We now cancel the common factors to get:

Answer:
3m and 9m
Step-by-step explanation:
length of the rectangle = 2w+3
width of rectangle = w
area = L*W
if area = 27m²
then (2w+3)w=27
=2w²+3w-27=0
using factorization w= 3 or -4.5
w=3m
L=9m
Substitute the 7 in anywhere there is an x.
49-5=44