A slot machine has 3 dials, each having 20 symbols, as listed in the table below. The 6 symbols (bar, bell, cherry, lemon, orange, plum) are all different. Determine in how many ways you can get the following combinations.

A.) 3 bars = _ ways

B.) 3 bells = _ ways

C.) 3 oranges = _ ways

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb

c-   36

taxicab circle radius 9 has 4(9) = 36 points

answer is b 270°

i got it down for you chief.