4/(m+9)+5/(m^2-81)=
4/ ( m+9) +5 / ( m-9)(m+9)=
4(m-9)/(m+9)(m-9)+ 5 / (m+9)(m-9)=
(4m-36+5)/(m+9)(m-9)=
4m-31/ (m+9)(m-9)
the answer is D
The mean is the average.
To find the mean, you add up all the numbers, and then divide by the number of numbers.
:P
Answer:
10 + 5i & 10 - 5i
Step-by-step explanation:
10 + 5i is still just 10 + 5i because we treat i like it's x.
Complex conjugate if I remember correctly is like a + or - form, so I believe 10 - 5i is correct?
Hope this helped.
Answer:
-675/15
Step-by-step explanation:
The problem isn't even complete
Answer:
Ты русский? на этом сайте только американцы они тебе не помогут ни чем
Step-by-step explanation:
