Answer:
Step-by-step explanation:
We need to evaluate
(5+6i)(5+6i) = (25 + 36i² + 60i) = (25 - 36 + 60i) = -11 + 60i
=
Now we rationalize the denominator.
Now, multiplying both the numerator and denominator by (6-i)
=
Formula used:
(a+b)² = a² + b² + 2ab
i² = -1
Answer:
1). Number of kids on the other side = 16
2). Brian took the time to each piece of pie = 20 seconds
Step-by-step explanation:
1). Let the number of kids on one side = x
Then the number of kids on other side = 2x
3 adults helped the side having number of kids = x, then the number of people on this side = x + 3
Since the total number of people on this side = 11
Then the equation will be,
x + 3 = 11
x = 11 - 3
x = 8
Then number of kids on the other side = 2x = 2×8
= 16
2). By unitary method,
∵ Brian took the time to eat 6 pieces of the pie = 2 minutes
∴ Brian will take time to eat 1 piece of pie = minutes
= seconds
= 20 seconds
The geometric mean for the above set of data given is: 1.1475 (Option B). See the explanation below.
The geometric mean can be defined as the average rate of return of a set of values obtained by multiplying the terms together.
Geometric mean is best suited for series with serial correlation, which is notably true for investment portfolios.
<h3>What is the computation justifying the above answer?The formula for geometric mean is given as:
Hence,
The geometric Mean =
1.0147506490423
1.1475
Learn more about Geometric Mean:
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