4 years ago

What is i^2 simplified?

Mathematics

2 answers:

Crank4 years ago

6 0

Negative 1 would be your answer

iren [92.7K]4 years ago

4 0

i²=-1

It"s a basic result of complex number :)

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What is the first 6 nonzero multiples of 5

DIA [1.3K]

How many multiples? I'll give you the first 10

1- 5
2- 15
3- 25
4- 35
5- 45
6- 55
7- 65
8- 75
9- 85
10- 95

8 0

3 years ago

The circumference of a circle is 62.8 centimeters. What is the circle's radius?

Kobotan [32]

Hello!

To solve this exercise, we must use the formula below:

$\mathrm{C=2\cdot\pi\cdot r}$

C = 62.8cm
π = 3.14
r = ?

Knowing these values, let's replace them in the formula to obtain r:

$\mathrm{62.8=2\cdot\ 3.14\cdot r}\\\mathrm{62.8=6.28r}\\\mathrm{6.28r=62.8}\\\\\mathrm{r=\dfrac{62.8}{6.28}}\\\\\boxed{\mathrm{r=10}}$

So, the radius of this circle is 10cm.

Hope this helps!

4 0

2 years ago

Find the whole number 50% of what number is 45?

ValentinkaMS [17]

Is/of=%100
45/x=50%/100
the answer is 90.

4 0

3 years ago

Read 2 more answers

What is 3 1/4×5/8

Hunter-Best [27]

Answer:

2 1/32

Step-by-step explanation:

3 1/4×5/8

Change the mixed number to an improper fraction

3 1/4 = (4*3+1)/4 = 13/4

13/4 * 5/8

65/32

Changing back to a mixed number

32 goes in to 65 two times with 1 left over

2 1/32

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3 years ago

A grocery store sells 6 bottles of water for $4. They also sell 18 bottles of water for $10. Is the cost of the water proportion

IgorC [24]

Answer:

Step-by-step explanation:

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3 years ago