So first off, remember the formula for the area of a rectangle. it's length time width right? or, you could think that A= 2 things multiplied together. how can we simplify x^2 - x -72 to equal two things multiplied together? well, we can factor it! We know that one of the factors is x+8 right? so what's the other factor? it would be x-9. so, we know width is x-9. I'm not sure if you need an actual value for width. if so, I could probably go further.
530.59
take the surface area of the cylinder (358.14)
and add it with the surface area of the cone(172.45)
Answer:
100 meters 20/5=100
Not sure about the second one
hope this helps
Step-by-step explanation:
The degree of the sum and difference of the polynomials are 6 and 7 respectively.
given polynomials are:
the sum of polynomials = 
the difference of polynomials = 
<h3>what is the degree of a polynomial?</h3>
A polynomial's degree is the highest or the greatest power of a variable in a polynomial equation.
degree of sum = monomial with highest power = 5+1=6
degree of difference = monomial with highest power = 3+4 = 7
therefore, the degree of the sum and difference of the polynomials are 6 and 7 respectively.
to get more about polynomials refer to:
brainly.com/question/1600696
