Question

easy math question please help

Answer 1

A building has x floors. The number of apartments on each floor is 6 less than the number of floors. The number of rooms in each apartment is 1 less than the number of apartments on each floor. The expression below shows the total number of rooms in the building:

x(x - 6)(x - 7)

Part A: What does x(x - 6) represent?

Part B: What type of polynomial is x(x - 6)(x - 7)?

Part C: What is the degree of the polynomial x(x - 6)(x - 7)?

Answer 2

@Hero @matricked

Answer 3

So basically

x = number of floors
x - 6 = number of apartments on each floor.

And for part A, you have to figure out what x(x - 6) means.

What you do when you are stuck, is to actually quantify each object and create a hypothetical situation.

Suppose there were 10 floors. Then there would be 10 - 6 apartments or 4 apartments on each floor.

Therefore the
# of floors times the # of apartments = 10 x 4
= 40

So in other words, what they are asking is, what would the 40 represent?

Answer 4

the number of apartments on each floor?

Answer 5

Actually, it would be the TOTAL number of apartments in the building.

Answer 6

Get it?

Answer 7

Notice that x - 6 already represents the number of apartments on each floor and we were looking for what x(x - 6) means.

Answer 8

I hope I didn't confuse you further.

Answer 9

ok no I understand for part b will it be a first degree binomial?

Answer 10

Have you tried multiplying it out? One huge hint is that you have three x's being multiplied together.

Answer 11

What happens if you multiply x three times?

Answer 12

x^3-13x^2+42x is what I got so it would be a 3rd degrre trinomial right

Answer 13

Yes, generally described as a cubic polynomial.

Answer 14

Good luck with the rest of it :)

Answer 15

maybe you should stop cheating on your FLVS FINAL EXAM!!! I'm going to report these accounts