For
the area is
find S
S=(10+11+12)/2=(33)/2=16.5
area=51.5212
rounded
52 square inches
So it's 4x-5 equal to -20 to the second power
-20x-20 =400
The answer is 400
Answer:
b
Step-by-step explanation:
First move the decimal by one and add a 0 and then a decimal after the 0.
then divide from there
Rearrange the polynomial:
a^2–2ab+b^2 - c^2
((a-b)(a-b))-c^2
(a-b)^2-c^2
Set x =a-b and y=c. The formula becomes
x^2-y^2
factoring this polynomial, we get
(x+y)(x-y)
Substituting back, we get:
(a+b+c)(a+b-c)
Let’s multiply it out to check:
A^2 -ab ac
- ab B^2 -bc
-ac bc -c^2
