There is a formula for adding consecutive numbers:
total = n*(n+1)/2
total = 80*(81)/2
total = 3,240
Answer:
It should take you 12 minutes per mile, so for 5 miles it should take you approx. an hour/60 minutes.
Answer:
Step-by-step explanation:
=-3-i-5-3i
=-8-4i
Answer:
No real solutions;

Step-by-step explanation:
The easiest method to solve an algebraic equation is to use inverse operations. This applies to the given equation;

- Take the square root of both sides
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As one can see, the right side is a negative number. However, one cannot take the square root of a negative number and get a real result. Therefore, one must use imaginary numbers. Remember, the imaginary unit (
) represents (
).
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- Add (3) to undo the (-3)

- Divide by (2) to remove the coefficient of (2x)
÷
÷

Simplify,
