Answer:
4/7
Step-by-step explanation:
5 and 5 cancel out each other
Answer:
wait ill work this out for you
Step-by-step explanation:
Answer:
$184, assuming attendance of one course (not class).
Step-by-step explanation:
Total cost for one year (x) = $100 + ($7/ month)x, where x is the number of months.
As there are 12 months in one year:
Total cost (12) = $100 + ($7/monthly)(12) = $184
Move the -2x^2 over to the other side to make it positive and then rewrite in descending order of x's. Like this: 2x^2 - 12X + 18. Factor out a 2 to make things easier: 2(x^2 - 6x + 9). Now factor what's inside the parenthesis. Both signs are the same and they're both negative: (x - )(x - ). It's up to us now to find out what goes inside there with those x's. What adds up to -6 has to multiply to +9. Two 3's fit inside there perfectly: -3-3=-6, and -3*-3=9, so the factors are (x-3)(x-3), and setting those equal to zero according to the Zero Product Property, x-3=0 so x = 3 with a multiplicity of 2.
