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Yuri [45]
4 years ago
15

Which of these is a complex number?

Mathematics
2 answers:
Ostrovityanka [42]4 years ago
7 0

Answer:

B.

Step-by-step explanation:

That would be B.

8/3 + √(-7/3) :-  because it consists of a real part ( the 8/3) and an imaginary part √(-7/3).

The √(-7/3) is usually written as √(7/3)i where i is √-1, so the complex number is 8/3 + √(7/3)i.

faltersainse [42]4 years ago
4 0

Answer:

b

Step-by-step explanation:

\frac{8}{3}+\sqrt{-\frac{7}{3}} =\frac{8}{3}+i\sqrt{\frac{7}{3}}

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In △ABC, m∠A=27 °, c=14 , and m∠B=25 °. Find a to the nearest tenth.
Gnesinka [82]

Answer:

a = 8.1

Step-by-step explanation:

Firstly, since we have a triangle, automatically, we have 3 interior angles

Mathematically the sum of these angles = 180

A + B + C = 180

27 + 25 + C = 180

52 + C = 180

C = 180-52

C = 128

We use the sine rule to find a

The sine rule posits that the ratio of a side to the sine of the angle facing that side is equal for all the sides of a triangle

Thus, mathematically according to the sine rule;

c/Sin C = a/Sin A

14/sin 128 = a/sin 27

a = 14sin27/sin 128 = 8.0657

which to the nearest tenth is 8.1

3 0
4 years ago
HELP PLEASE 30 PTS!!!!!
cupoosta [38]

I am 100% sure the answer is a.4

Because it was (2,3) then became (8,12)

2*4= 8 and 3*4= 12

The numbers 2 and 3 were multiplied by 4 to get 8 and 12

8 0
3 years ago
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Anna is planning a birthday party for her brother Juan. She is planning on serving hamburgers to her guests.
wolverine [178]
The least amount of hamburger patties anna could buy would be 24 and that is 2 packs of 12. this is because the LCM of 12 and 8 is 24
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3 years ago
Find the volume.<br><br><br> 986 m3<br><br><br> 3,360 m3<br><br><br> 408 m3<br><br><br> 1,680 m3
Jobisdone [24]

Answer:

The volume is 1,680\ m^3

Step-by-step explanation:

we know that

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where

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we have

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L=10\ m ----> perpendicular distance between the two triangular bases

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3 years ago
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