A^2-5a = 6
a^2-5a-6 = 0
Discriminant = (-5)^2-4(1)(-6) = 49
Discriminant is positive so there are two solutions
I already answered that question, here's the link:
brainly.com/question/10534199.
But if you still want the explanation, here it is:
"So if we want to measure probability, you have to add, then divide, like this:
First

, which gives us 18.
Then we see, that 6 is 1/3 of 18, so we conclude.
The answer is 33.33%.
Hope this helped!"
Answer:
about 40 kilometers
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
add 30 then 42 then 18 and divide it in to as many possible