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maksim [4K]
4 years ago
8

D + 9 = 29 A) 38 B) 21 C) 19 D) 20

Mathematics
2 answers:
Marta_Voda [28]4 years ago
5 0

The answer would be D

Step-by-step explanation:

Just subtract 9 from 29

Once you do that you get 20

20+9=29

____ [38]4 years ago
4 0

Answer: D)20

Step-by-step explanation: 29-9=20

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Answer:

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see attached

Step-by-step explanation:

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Step-by-step explanation:

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4 years ago
The angle between the complex numbers 2+2i and -7
anygoal [31]

Answer:Consider the right triangle formed by the complex number in the Argand-Gauss plane and it's projections on the axis. – José Siqueira Nov 12 '13 at 17:21

In particular what is the definition of sine of theta in terms of the known sides of the above mentioned right triangle? – Adam Nov 12 '13 at 17:27

Add a comment

3 Answers

1

Consider the following Argand-diagram

enter image description here

The y-axis is the imaginary axis and the x-axis is the real one. The complex number in question is

x+yi

To figure out θ, consider the right-triangle formed by the two-coordinates on the plane (illustrated in red). Let θ be the angle formed with the real axis.

tanθ=yx

⟹tan−1(yx)

The hypotenuse of the triangle will be

x2+y2−−−−−−√

Therefore,

Step-by-step explanation:

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3 years ago
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Oliga [24]

Answer:

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Step-by-step explanation:

380 is more than 248 but if 380 was put as a negative, it would be seenon the number line as less.

example: -380.......0........248

example 2: 0.....248.....380

8 0
3 years ago
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