Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
A rectangle has sides measuring (4x + 5) units and (3x + 10) units.
Part A: What is the expression that represents the area of the rectangle? Show your work to receive full credit. (4 points)
Part B: What are the degree and classification of the expression obtained in Part A? (3 points)
Part C: How does Part A demonstrate the closure property for polynomials? (3 points)
OpenStudy (anonymous):
(4x+5)(3x+10)
DO YOU KNOW FOIL?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
cool, do it
OpenStudy (anonymous):
I need help
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
ok so
12x^2 + 40x + 15x + 50
OpenStudy (anonymous):
What about that?
OpenStudy (anonymous):
do you get how I used foil to get that?
OpenStudy (anonymous):
Not really... for area dont you just multiply the two together
OpenStudy (anonymous):
When I multiplied the two together I got 12x^2+55x+50
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
@twistnflip
OpenStudy (anonymous):
perfect
OpenStudy (anonymous):
This is the expression for part a
OpenStudy (anonymous):
Oh ok so for part b...
OpenStudy (anonymous):
Well the degree is the highest exponent, so 2 and classification I would assume quadratic, what classification do they want you to do. What did you learn
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
I think it would be a polynomial degree of 2 because thats what we are learning about