Answer:
C and D
Step-by-step explanation:
1)
45x^3+5x
the GCF is 5x because that is a factor of both.
The answer would be 5x(9x^2+1)
2)
u^2-5u+6
factoring is finding what multiplies to the last number to add to the middle number. Those numbers are -3 and -2.
the answer would be (u-3)(u+2)
3)
m^2-49
difference of perfect squares
answer is (m+7)(m-7)
4)
x^5+4x^4+3x^3
GCF is x^3 so it's x^3(x^2+4x+3)
Factor that and it's x^3(x+3)(x+1)
Answer:
That would be wrong becuase its starting on march 2nd not March 1st, if march 1st, then it would be resoanble if she used both machines during the same day. It would be on the 17th before she uses both machines on the same day.
i believe the answer is 17.5 i'm not sure though