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irakobra [83]
3 years ago
6

PLEASE HELP ME!!!!!!!

Mathematics
1 answer:
Marianna [84]3 years ago
6 0

Answer:

62

Step-by-step explanation:

leave an brainlest!

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Show the tens fact you used. Write the difference.<br> 12-7=<br> 10- _=
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12-7=5

10-5=5


is that what you where looking for?

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Explain and demonstrate the multiplication of complex conjugates using 2+3i and its complex conjugate. Be sure to discuss all st
krok68 [10]

The product of a <em>complex</em> number and its conjugate is (a + i b) · (a - i b), where a and b are <em>real</em> numbers, and the result for the <em>complex</em> number 2 + i 3 is 13.

<h3>What is the multiplication of a complex number and its conjugate</h3>

Let be a <em>complex</em> number a + i b, whose conjugate is a - i b. Where a and b are <em>real</em> numbers. The product of these two numbers is:

(a + i b) · (a - i b)

Then, we proceed to obtain the result by some algebraic handling:

a · (a + i b) + (- i b) · (a + i b)

a² + i a · b - i a · b - i² b²

a² - i² b²

a² + b²

If we know that a = 2 and b = 3, then the product of the complex number and its conjugate is:

z\cdot \bar z = 2^{2} + 3^{2}

z\cdot \bar z = 13

To learn more on complex numbers: brainly.com/question/10251853

#SPJ1

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2 years ago
How to solve this problem <br><br>.         0.3 [1.57 – (0.6)²]
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Well (1.57- 0.6 X 0.6) x 0.3 = 0.363
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The correct answer is A) 10 inches...Brainliest?...
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A typist can type 4800 words per hour. How many words can she type in 1 minute?
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Answer: 80

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So to know how many words can she type in 1 min, we do the math "4800 : 60"

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