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r-ruslan [8.4K]
2 years ago
6

Simplify (1+3i) + (2-5i)​

Mathematics
1 answer:
qwelly [4]2 years ago
8 0

Answer:

3 - 2i

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Terms/Coefficients

<u>Algebra II</u>

  • Imaginary number <em>i</em> = √-1

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

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

<u>Step 2: Simplify</u>

  1. [Addition] Combine like terms:                                                                        3 + 3i - 5i
  2. [Subtraction] Combine like terms (i):                                                               3 - 2i
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Please help me. <br> I need help with this question.
iogann1982 [59]

Answer:

$367.38 is the cost to stain the entire deck.

Step-by-step explanation:

Here is what you need to know beforehand:

<em>Diameter</em> is <u>a line</u> that goes <u>through a circle</u>. <em>Radius</em> is <u>a line </u>that goes from <u>the edge of the circle all the way to the center</u>/<u>a line </u>that goes <u>halfway through the circle</u>.

--------------------------------------------------------------------------------------------------------------

<u>First, find the area of the circle. Here is the formula:</u>

Area = 3.14 (Pi) x r²

Since radius is half of the diameter (as explained above), you'll need to divide the diameter in half: 12m/2 = 6m

So the formula will look like this:

Area = 3.14 x 6²

<u>Then, you just do the math:</u>

Area = 3.14 x 6²

Area = 3.14 x 36

Area = 113.04

The goal of the problem is to find the amount of money Emma needs. <u>Finally, all you need to do is multiply the amount it cost to stain per square meter by the total area of the deck:</u>

Answer = 113.04 x 3.25

Answer = 367.38

$367.38 is the cost to stain the entire deck.

4 0
2 years ago
What is the ratio of the corresponding side lengths?<br> 4:9<br> 4:2<br> 26:26<br> 4.5:2
Evgen [1.6K]

Answer:

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Step-by-step explanation:

8 0
3 years ago
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Help guysss im in 6th really need help
NNADVOKAT [17]
5 times as many. Since dog B has 2 and dog A has 10, A = 2 * X, since you’re solving for the multiplication comparison. 10/2 = 5, so you’ve got 5 times as many.
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2 years ago
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G is the set in the definition you gave.

G = {1, 2, 3, 4, 5, 6, 7}

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2 years ago
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likoan [24]
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4 0
2 years ago
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