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2 years ago

Please helpppppp tysm Have a wonderful day.

Mathematics

2 answers:

pantera1 [17]2 years ago

6 0

Answer:

418.4

Step-by-step explanation:

pav-90 [236]2 years ago

5 0

Answer:

418.4

Step-by-step explanation:

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How to find the square root of complex numbers?? Find the square root of (6+8i) ??

ivann1987 [24]

Answer:

$2 \sqrt{2} + i \sqrt{2}$

Step-by-step explanation:

The square of a complex number is a complex number. Here, we have:

${(a + bi)}^{2} = 6 + 8i$

${a}^{2} + 2abi - {b}^{2} = 6 + 8i$

We then have this system of equations:

${a}^{2} - {b}^{2} = 6$

$2ab = 8$

Solving this system:

$ab = 4$

$b = \frac{4}{a}$

${a}^{2} - {( \frac{4}{a}) }^{2} = 6$

${a}^{2} - \frac{16}{ {a}^{2} } = 6$

${a}^{4} - 16 = 6{a}^{2}$

${a}^{4} - 6 {a}^{2} - 16 = 0$

$( {a}^{2} - 8)( {a}^{2} + 2) = 0$

${a}^{2} = 8$

$a = 2 \sqrt{2}$

$b = \frac{4}{2 \sqrt{2} } = \sqrt{2}$

6 0

1 year ago

Read 2 more answers

What is 0.043 written as a percent?

meriva

To find a percent you multiply the decimal number by 100. OR to be easier just move the decimal number 2 places to the right.

4.3%

4 0

3 years ago

Solve for x. <br> A) 11<br> B) 9<br> C) 6<br> D) 7

DIA [1.3K]

Answer:

Step-by-step explanation:

Angle BCA is inscribed in that circle. The rule is that the inscribed angle is half the measure of the arc it intercepts. The arc it intercepts is arc AB which measures 96 degrees. That means that

$4x+4=\frac{1}{2}(96)$ and

4x + 4 = 48 and

4x = 44 so

x = 11

Choice A is the one you want.

8 0

2 years ago

What is x+61=45+85-180

Alekssandra [29.7K]

Answer: x = - 111

Step-by-step explanation:

Add the like terms on the right side of the equation. 45 + 85 = 130. 130 - 180 = - 50. The equation simplifies to x + 61 = - 50
Subtract 61 on both sides. x = - 111

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3 years ago

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katen-ka-za [31]

Answer:

Step-by-step explanation:

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2 years ago