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Anton [14]
2 years ago
15

A rainbow is an arc of colors that is visible in the sky, caused by the refraction and dispersion of light after rain or other w

ater droplets in the atmosphere .The colours of the rainbow are generally said to be red
Mathematics
1 answer:
Masteriza [31]2 years ago
7 0

Answer:

Red, orange, yellow, green, cyan, blue and purple.

Step-by-step explanation:

The rainbow is a colorful visual and meteorological phenomenon, in which the range of colors that compose the visible light in the sky appears. The phenomenon occurs when the sun's rays fall on raindrops in the Earth's atmosphere and is an example of refraction, after reflection. Each color is refracted at a different angle inside the droplets (which act like small prisms), it undergoes a different deflection and so the visible white light is analyzed in the different colors that compose it.

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How do you rewrite the sum of 60 + 90 as the product of the GCF of the two numbers and a sum
Xelga [282]
Sixty more than ninety times two multiply by x
4 0
3 years ago
Find the measure of angle ABC​
victus00 [196]
First we need to find x so 6x+8x+6x= 180
20x=180 and x= 9

So A= 6*9= 54
B= 8*9= 72
C= 6*9= 54
5 0
2 years ago
NEED NOW ASAP!
Umnica [9.8K]

Answer:

A

Step-by-step explanation:

imagine the shape is flipped and standing up. that's how you can compare both images.

4 0
3 years ago
What types of numbers are undefined when they are under a radical sign? If you were dealing with the number √-1, would it be def
Misha Larkins [42]
The square root of a a negative integer is imaginary.
It would still be a negative under a square root if you multiplied it by 2, therefor it will still be imaginary, or I’m assuming as your book calls it, undefined.
2•(sqrt-1) = 2sqrt-1

If you add a number to -1 itself, specifically 1 or greater it will become a positive number or 0 assuming you just add 1. In that case it would be defined.
-1 + 1 = 0
-1 + 2 = 1

If you add a number to the entire thing “sqrt-1” it will not be defined.
(sqrt-1) + 1 = 1+ (sqrt-1)

If you subtract a number it will still have a negative under a square root, meaning it would be undefined.
(sqrt-1) + 1 = 1 + (sqrt-1)

however if you subtract a negative number from -1 itself, you end up getting a positive number or zero. (Subtracting a negative number is adding because the negative signs cancel out).
-1 - -1 = 0
-1 - -2 = 1

If you squared it you would get -1, which is defined
sqrt-1 • sqrt-1 = -1

and if you cubed it, you would get a negative under a square root again, therefor it would be undefined.
sqrt-1 • sqrt-1 • sqrt-1 = -1 • sqrt-1 = -1(sqrt-1)

Sorry if this answer is confusing, I don’t have a scientific keyboard, I’ll get one soon.
8 0
2 years ago
Divide £21 in ratio 3:4
xxMikexx [17]
3+4 = 7
so
21 / 7  3

3 x 3 = 9
3 x 4 = 12

answer
£21 in ratio 3:4 is £9:£12
3 0
3 years ago
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