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andreyandreev [35.5K]
3 years ago
15

Is diameter and radius the same thing

Mathematics
2 answers:
fredd [130]3 years ago
8 0

radius* 2=diameter so no diameter and radius aren't the same thing because radius is half the distance across the circle and diameter is the full distance across the circle.
lisov135 [29]3 years ago
7 0
NO!!!!!!
diameter is the length across the circle
radius is the length from the center of the circle to the outside 
radius = r
diameter= d
d=2r
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IrinaVladis [17]

The first statement is true.

The second statement is false.

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4 0
3 years ago
Read 2 more answers
Use DeMoivre's Theorem to find (3cis*pi/6)^3
Sonbull [250]

The correct value of (3cis(pi/6))³ is 27i.

<h3>What is Complex Number?</h3>

Complex numbers are numbers that consist of two parts — a real number and an imaginary number. Complex numbers are the building blocks of more intricate math, such as algebra.

Given the complex number in polar coordinate expressed as

z = r(cos∅+isin∅)

zⁿ =  {r(cos∅+isin∅)}ⁿ

According to DeMoivre’s Theorem;

zⁿ =  rⁿ(cosn∅+isinn∅)

Given the complex number;

(3cis(pi/6))³

= {3(cosπ/6 + isinπ/6)}³

Using  DeMoivre’s Theorem;

= 3³(cos3π/6 + isin3π/6)

=  3³(cosπ/2 + isinπ/2)

= 3³(0 + i(1))

= 27i

Thus, the correct value of (3cis(pi/6))³ is 27i.

Learn more about Complex number from:

brainly.com/question/10251853

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7 0
2 years ago
HELPPP<br><br> A. 9<br> B. 20<br> C. 16<br> D. 4
serious [3.7K]

Answer:

C 16

Step-by-step explanation:

Using ratios

3:12

12/3=4

4:x

4*4=16

x=16

4:16

hope this helps:)

6 0
3 years ago
PLEASEE<br> Solve<br> x=6<br> 4x +y =20
Tanya [424]

Answer: y = -4

Step-by-step explanation:

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8 0
2 years ago
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Which of the following are the roots of the equation:
Rasek [7]
The answer is most definitely D :)
8 0
3 years ago
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