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ZanzabumX [31]
3 years ago
6

. Why do we use a symbol for pi?

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
5 0

Answer:

We use a symbol because pi itself is not just a number. It goes on forever and in order to represent this number we use the symbol of pi (π). Or we round it to 3.14.

Step-by-step explanation:

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Light travels 1.08 x 10 9 kilometers in one hour. How far does it travel in 2 hours?
ozzi

The distance traveled by the light in 2 hours is 2.16×10⁹ km.

<h3 /><h3>Distance:</h3>

This is the total length of space between two points covered by an object. Distance has no regard for direction as it is termed a scalar quantity. The S.I unit of distance is meter(m).

To calculate the distance traveled by the light in 2 hours, first, we need to calculate the speed of the light.

Formula:

  • S = d/t................. equation 1

Where:

  • S = speed
  • d = distance travelled
  • t = time

From the question,

Given:

  • d = 1.08×10⁹ km
  • t = 1 hour

Therefore,

  • s = 1.08×10⁹/1
  • s = 1.08×10⁹ km/h

The distance traveled in 2 hours is

  • d = 2×1.08×10⁹
  • d = 2.16×10⁹ km

Hence, the distance traveled by the light in 2 hours is 2.16×10⁹ km

Learn more about distance here: brainly.com/question/23848540

6 0
2 years ago
May I get help on these questions, please?
Virty [35]
Hello! here are the basic rules that you need to know to solve these problems:

a diameter is 2 × the radius
the circumference rule is 2×π×radius

I will solve the first question to show how to format.

1: 5/2=2.5
2×2.5×π=5×π=15.7
5 0
2 years ago
4y=-3-x<br> 7x-4y=43<br> elimination please help!!
riadik2000 [5.3K]

Answer:

x = 5 y =-2

Step-by-step explanation:

You can substitute the 4y in,
7x - (-3-x) = 43
7x + 3 + x = 43
8x + 3 = 43
8x = 40
x = 5

Then plug the x back into the equation,
4y = -3 - 5
4y = -8
y = -2

4 0
2 years ago
Read 2 more answers
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Agata [3.3K]
4 is not a factor because it does not multiply with anything to make forty except 10.5 but it can't be a decimal
3 0
3 years ago
One more for this find the slope stuff
sladkih [1.3K]

Solution given:

y=70x+\frac{82}{91}

Comparing above equation with y=mx+c

we get

m=70

So

<u>Slope</u><u>=</u><u>7</u><u>0</u>

8 0
3 years ago
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