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Sladkaya [172]
3 years ago
13

Need geometry help asap! image above✨

Mathematics
1 answer:
horsena [70]3 years ago
4 0
Hope this helps with the answer to your question

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Write the complex number in the form a + bi.<br> 3(cos 60° + i sin 60°)
hram777 [196]

Answer:

The complex number in the form of a + b i is 3/2 + i √3/2

Step-by-step explanation:

* Lets revise the complex number in Cartesian form and polar form

- The complex number in the Cartesian form is a + bi

-The complex number in the polar form is r(cosФ + i sinФ)

* Lets revise how we can find one from the other

- r² = a² + b²

- tanФ = b/a

* Now lets solve the problem

∵ z = 3(cos 60° + i sin 60°)

∴ r = 3 and Ф = 60°

∵ cos 60° = 1/2

∵ sin 60 = √3/2

- Substitute these values in z

∴ z = 3(1/2 + i √3/2) ⇒ open the bracket

∴ z = 3/2 + i √3/2

* The complex number in the form of a + b i is 3/2 + i √3/2

6 0
3 years ago
Read 2 more answers
Match each item in Column A to an answer in Column B.
Makovka662 [10]
1) credit Card
2) debit card
3) both
4) credit card (maybe)

Hope it helps!! :)
3 0
3 years ago
If a tennis ball has a diameter of 14, What is the volume of the tennis ball in terms of pie?
katrin [286]

Answer:

the volume of the tennis ball is 1436

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
-1.2(-3 - w) + 2w <br> show work plsss!
stich3 [128]

Answer:

3.2w+3.6

Step-by-step explanation:

(−1.2)(−3)+(−1.2)(−w)+2w

=3.6+1.2w+2w

Combine Like Terms:

=3.6+1.2w+2w

=(1.2w+2w)+(3.6)

=3.2w+3.6

HOPE IT HELPED GOOD LUCK

5 0
2 years ago
The ratio of cassette to compact disc is 10 to 3 and the number of cassettes is 10 less than 5 times the number of compact discs
OlgaM077 [116]

There are 20 cassettes.

Step-by-step explanation:

Given,

Ratio of cassette to compact disc = 10:3

Let,

the number of cassettes = 10x

Number of compact disc = 3x

According to given statement;

the number of cassettes is 10 less than 5 times the number of compact discs.

10x = 5(Number of CD) - 10

10x=3(5x)-10 \\10x=15x-10\\10=15x-10x\\10=5x\\5x=10

Dividing both sides by 5

\frac{5x}{5}=\frac{10}{5}\\x=2

Number of cassettes= 10x = 10(2) = 20

There are 20 cassettes.

Keywords: variable, ratio

Learn more about variables at:

  • brainly.com/question/10414011
  • brainly.com/question/10483199

#LearnwithBrainly

5 0
3 years ago
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