Answer:
b .
Area=(x-5) (x-3)
Area = x^2 -8x+15
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Area of a rectangle = width x length
The original length and width was x, so if the stage needs to be 5 feet narrower and 3 feet shorter.
x-5
x-5
The formula is:
A=(x-5) (x-3)
Solving:
A = (x.x) + (x.-3) + (-5.x)+ (-5.-3)
A = x^2 -3x -5x+15
A = x^2 -8x+15
They are the same because they both have 4 sides
Answer:
289
Step-by-step explanation:
We don't need
at all for this.
We will need to know
before continuing...
can be found by replacing
in
with
:



-------------------
Now let's find
:
![[f(4)]^2](https://tex.z-dn.net/?f=%5Bf%284%29%5D%5E2)
![[17]^2](https://tex.z-dn.net/?f=%5B17%5D%5E2)


-3^6 = -729
-729 +(-4+7)(2)
-729 +(3)(2)
-729 + 6
-723
<em>hope it helps :)</em>
(ps: the result of -3^6 is not +729, the expression that would give this result is (-3)^6