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shusha [124]
3 years ago
11

Do the ratios 3:2 and 54:10 form a proportion

Mathematics
1 answer:
Bas_tet [7]3 years ago
5 0

Answer:

No.

Step-by-step explanation:

3/2=1.5 and 54/10=5.4.

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What are the roots of 4x2 + 35x − 9 = 0?
ElenaW [278]
X= - 1/4 = -0.250 OR x=9
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seal had a balance of negative $4 in his saving account after making a deposit he has $25 in his account what is the overall cha
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If a cube of metal measures 3 cm on each side and has a mass of 216 g what is the density of the metal
ohaa [14]
The formula of density is mass / volume.
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4 0
3 years ago
Read 2 more answers
Please HELP!!!!
Karolina [17]

Answer:


Step-by-step explanation:

Firstly, note that -2i really is just z = 0 + (-2)i, so we see that Re(z) = 0 and Im(z) = -2.

When we're going from Cartesian to polar coordinates, we need to be aware of a few things! With Cartesian coordinates, we are dealing explicitly with x = blah and y = blah. With polar coordinates, we are looking at the same plane but with angle and magnitude in consideration.

Graphing z = -2i on the Argand diagram will look like a segment of the y axis. So we ask ourselves "What angle does this make with the positive x axis? One answer you could ask yourself is -90°! But at the same time, it's 270°! Why do you think this is the case?

What about the magnitude? How far is "-2i" stretched from the typical "i". And the answer is -2! Well... really it gets stretched by a factor of 2 but in the negative direction!

Putting all of this together gives us:

z = |mag|*(cos(angle) + isin(angle))

= 2*cos(270°) + isin(270°)).

To verify, let's consider what cos(270°) and sin(270°) are.

If you graph cos(x) and look at 270°, you get 0.

If you graph sin(x) and look at 270°, you get -1.

So 2*(cos(270°) + isin(270°)) = 2(0 + -1*i) = -2i as expected.

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3 years ago
If a toy car travels 4025 nanometers how many centimeters did it travel
Nikitich [7]

The answer is 0.0004025

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3 years ago
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