Addition,subtraction,and multiplication
Answer:
B
Step-by-step explanation:
because the answer matches the equation
Answer:
first multiply 2x with 8
you see in down there is x common so take it as common
now we have x on top as well as in bottom cut them
here is answer
Answer:
19.11 hours on watching tv and 20.09 hours exercising
Step-by-step explanation:
multiply them by 7
Answer:
C(n, 2)a^(n-2)b^2
Step-by-step explanation:
Generally, the expansion is written in decreasing powers of "a", so the first few terms would have variable constellations that look like ...
a^n, a^(n-1)b, a^(n-2)b^2, ...
The coefficients would be (in order), C(n, k) for k increasing from 0, so the coefficient of the 3rd term would be C(n, 2).
