He made a mistake in step #2. It seemed to be a trivial mistake because it involved signs, but it still had a great impact. Since step#2, his solution was already wrong.
Instead of
(-1)²-4(2)(-6) = 1 + 48 = 49
What he did is
(-1)²-4(2)(-6) = -1 + 48 = 47
P(5,2) = 5!/3! = 20
in 20 ways you can give medals
Answer:
Im srry can you give me the answers for the question
Step-by-step explanation:
Plz so I can help you
18 1/4 pieces she will have now
:)
Answer:

Step-by-step explanation:
To calculate the angles of the given triangle, we can use the law of cosines:

Then, given the sides a=2, b=9, and c=8.

For B:
