Answer:
w=2 w = -9
Step-by-step explanation:
w^2 + 7w - 18 = 0
We can factor this equation
What 2 numbers multiply to -18 and add to 7
9*-2 = -18
9+-2 = 7
(w-2) (w+9) = 0
Using the zero product property
w-2 = 0 w+9 =0
w=2 w = -9
No, 1/a^b (a^-b) doesn't equal -a^b
20 and 21 is your answer
20 + 21 = 41
hope this helps
The probability will be :
C(12,2) / C(40,2) = 11/130, which is around 8.46%
2^3=8 is log2^8=3 in exponential form
