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Ad libitum [116K]
3 years ago
8

I need help answering this one

Mathematics
1 answer:
aniked [119]3 years ago
3 0
I already a seed you when you asked this the first time. The answer is 3.
You multiply both sides by 50 and then you get this
(In the picture)
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Find the fifth roots of 243(cos 260° + i sin 260°)
Charra [1.4K]
<span>use De Moivre's Theorem:

⁵√[243(cos 260° + i sin 260°)] = [243(cos 260° + i sin 260°)]^(1/5)

= 243^(1/5) (cos (260 / 5)° + i sin (260 / 5)°)

= 3 (cos 52° + i sin 52°)

z1 = 3 (cos 52° + i sin 52°) ←← so that's the first root


there are 5 roots so the angle between each root is 360/5 = 72°

then the other four roots are:

z2 = 3 (cos (52 + 72)° + i sin (52+ 72)°) = 3 (cos 124° + i sin 124°)

z3 = 3 (cos (124 + 72)° + i sin (124 + 72)°) = 3 (cos 196° + i sin 196°)

z4 = 3 (cos (196 + 72)² + i sin (196 + 72)°) = 3 (cos 268° + i sin 268°)

z5 = 3 (cos (268 + 72)° + i sin (268 + 72)°) = 3 (cos 340° + i sin 340°) </span>
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3 years ago
Write 2,930,365 in expanded notation
Snowcat [4.5K]

Step-by-step explanation: The place value chart can help us write a number in expanded notation. When we put 2,930,365 into the place value chart, we can recognize that our number is equal to 2 millions + 9 hundred thousands + 3 ten thousands + 0 thousands + 3 hundreds + 6 tens + 5 units.

The place value chart is attached in the image provided.

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3 years ago
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Pls help ASAP i don’t have time!!!!!
Lesechka [4]

Answer:

Step-by-step explanation:

Let the width be W.

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Step-by-step explanation:

To figure out theta is using a bit of simple trigonometry.

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= sin(theta) = 0.5

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x = arcsin(0.5)

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2 years ago
I need help plz <br><br> .........<br> .......<br> .......
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Answer:

v=-60

Step-by-step explanation:

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3 years ago
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