Answer:
efghijklmnopqrstuvwxyz, thank me later
A= Area
l= length
w= width
l= w-3cm
A= l*w
A= 53cm²
53= l*w
(plug in value of length)
53= (w-3)(w)
0=w²-3w+53
Use the quadratic formula:
(in the pictures attached)
w= about 9cml=9-3=
6cmAny questions?
Answer:
X=-4
Step-by-step explanation:
5x-10x=22-2
-5x=20
x=-4
In completing the square, the first step is to factor out the first and second term so that the factor (x+a) is highlighted. This is seen in line 1. However, in line 2, the subtracted value should be 3 so as to compensate for the added value. This affects then line 3 as well. The answer is line 2.
3 terms. Abcd is one term
E is another term. -h27 is the third term