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3 years ago

I need help with adding complex numbers

Mathematics

1 answer:

Usimov [2.4K]3 years ago

4 0

For example:

Find: (3-i)+(2+3i) by graphing

Step 1: Graph 3-i and 2+3i on the complex plane. Connect each of these numbers to the origin with a line segment.

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I NEED HELP WITH ALL, MUST SHOW WORK!!! will give brainliest to the correct one!!!

inna [77]

1. 20 squared + 48 squared = 2704
square root of 2704 is 52. Answer: 52 inches.

2. -18 squared + 82 squared = 6400
square root of 6400 is 80 Answer: 80 inches

4 0

3 years ago

Tap A fills a tank in 4hours while B fills the same tank in 3hours. Tap C empties this tank when full in 2hours. If the tank is

boyakko [2]

Answer:

<em>It will take 12 hours to fill the tank</em>

Step-by-step explanation:

Proportions

Tap A fills a tank in 4 hours. It means each hour it fills 1/4 of the tank.

Tap B fills the tank in 3 hours. Each hour it fills 1/3 of the tank.

Tap C empties the tank when full in 2 hours. Each hour it empties 1/2 of the tank.

Each hour, the tank gets filled by:

$\displaystyle \frac{1}{4}+\frac{1}{3}-\frac{1}{2}=\displaystyle \frac{3}{12}+\frac{4}{12}-\frac{6}{12}=\frac{3+4-6}{12}=\frac{1}{12}$

Since the tank fills 1/12 of its capacity in one hour, it follows that it will take 12 hours to fill the tank

6 0

3 years ago

How to find the property of a trapezoid

Igoryamba

Answer:

Your question isn't very specific.

The area of a trapezoid = ((sum of the bases) ÷ 2) • height

Trapezoid Diagonals: formulas are attached.

Step-by-step explanation:

3 0

3 years ago

BRAINLIEST ANSWER

Alex

Question asked: if a number has an absolute value equal to 9,that number could be ____?

My answer: it would be C. -9 or 9

4 0

3 years ago

Read 2 more answers

Someone please tell me and maybe ill pay you

rjkz [21]

4x = 6x -10
2x = 10
x = 5

answer
x = 5

6 0

4 years ago