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kumpel [21]
3 years ago
7

Simplify the given expression below: (1 + 3) + (2 - 5i)

Mathematics
2 answers:
Airida [17]3 years ago
7 0

Answer:

6 -5i

Step-by-step explanation:

(1 + 3) + (2 - 5i)

Combine

1+3+2    -5i

6 -5i

ValentinkaMS [17]3 years ago
5 0

Answer:

6 -5i

Step-by-step explanation:

(1 + 3) + (2 - 5i)

Combine like terms

1+3+2    -5i

6 -5i

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The radius is 10 units, and each layer is one unit high. What is the volume of the cylinder in cubed units?​
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Answer:

Volume of cylinder is 6285.71 square units.

Step-by-step explanation:

Given the radius of cylinder 10 units. The height is twice its radius. we have to find its volume.

r=10 units

⇒ Diameter, d = 20 units

Also given height is twice its radius.

⇒ Height=2(r)=2(10)=20 units

<h2><em><u>Volume of cylinder=πr^2h</u></em></h2>

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hence, volume of cylinder is 6285.71 square units.

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2 years ago
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3 years ago
Theresa wants to order her mother flowers for her birthday. She wants to give the delivery person a $6.00 tip. The cost of the f
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Answer:

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Step-by-step explanation:

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If DF = 9x - 39, find Ef
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|DF| = |DE| + |EF| |DF| = 9x -36 |DE| = 47 |EF| = 3x+10 Substitute: 9x - 39 = 47 + 3x + 10 9x - 39 = 3x + 57 |+39 9x = 3x + 96 |-3x 6x = 96 |:6 x = 16 Put the value of x to the equation |EF| = 3x + 10 |EF| = (3)(16) + 10 = 48 + 10 = 58 Answer: |EF| = 58

Read more at Answer.Ya.Guru – https://answer.ya.guru/questions/4046336-if-df-9x-39-find-ef.html
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3 years ago
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