What is the square root of -1?

Answers

Answer 1

Answer:

ANSWER= square root(-1) = i

STEP-BY STEP EXPLANATION:

Imaginary number. An imaginary number is the square root of a negative real number. (The square root of a number is a second number that, when multiplied by itself, equals the first number.)

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What is the mean of 72,73,86,59,75,58,50,55

Answers

MEAN

Mean is the average. To find the mean of a data set, you have to add all the numbers and divide the sum by the amount of numbers you added.

In this equation, you have 8 numbers. That means you will be dividing by 8.

The first thing you need to do is add all the numbers. Add:

$72+73+86+59+75+58+50+55 = \bf 528$

Now that you have added all the numbers and got the sum, divide by 8. Remember that you will be dividing by 8 since you added 8 numbers.

Divide:

$528 / 8 = \bf 66$

The mean is 66

If you have any questions, feel free to ask in the comments! :)

The answer is 66.

Step by step explanation:
First, add all of the numbers together.
Then, divide the sum of the numbers by the number of entries you see.

Since there’s 8 numbers, you divide it by 8.

You pay $10.32 for 8 music downloads. What is the rate of cost per download?

Answers

the answer is 1.29 hope i helped

let x = cost per 1 download (rate of cost per download)
now we set up a proportion:
$(1)/(8) = (x)/(10.32)$
1 download
OVER
8 downloads
EQUALS
x (see top for x)
OVER
$10.32
when we cross multiply, we get
10.32=8x
divide both sides by 8 to get:
1.29=x
so the rate of cost per download is $1.29

What's a closed figure with 8 sides and 8 vertices

Answers

it would be an octagon

A shape with 8sides and vertices is an octagon.

A polygon has an angle sum of 360°, and each angle measures 90°. What is the polygon?

Answers

A polygon has an angle sum of 360°, and each angle measures 90°. Let's find our what is the polygon.
=> 360 degrees polygon with 90 degree measure for each angles.
=> 360 degrees / 90 degrees = 4
Therefore the polygon is a square.

What is the least common denominator between

5/6, 2/9

1/12, 3/8

5/9, 2/15

Answers

LCD is least common denominator, also called least common multiple LCM
5/6, 2/9 LCD is 18
1/12, 3/8 LCD is 24
5/9, 2/15 LCD is 45

18, 24, and 45 are the least common multiples of the denominators for their own pair.
:)

LCD is least common denominator, also called least common multiple LCM

5/6, 2/9 LCD is 18

1/12, 3/8 LCD is 24

5/9, 2/15 LCD is 45

18, 24, and 45 are the least common multiples of the denominators for their own pair.

The Gonzalez family is taking a cruise that costs $3,082.24 for a family of four. How much does it cost perperson?

Answers

$770.56 per person. You take the total cost of the cruise and divide it by 4.