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Paraphin [41]
3 years ago
7

Based on counting the number of galaxies in a small patch of the sky and multiplying by the number of such patches needed to cov

er the entire sky, the total number of galaxies in the observable universe is estimated to be approximately
A) 100 million.
B) 100 billion.
C) 1 billion.
D) 1 trillion.
E) 10 billion.
Mathematics
1 answer:
Vladimir [108]3 years ago
3 0

Answer:

100 billion

Step-by-step explanation:

Some astronauts reveals that there are 100 billion galaxies in the universe.

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Answer:

y = -\frac{5}{3}x+\frac{2}{3}

Step-by-step explanation:

Given

f(-2) = 4

f(1) = -1

Required

The equation of the function

The given parameters means that:

(x_1,y_1) = (-2,4)

(x_2,y_2) = (1,-1)

Calculate the slope (m)

m = \frac{y_2 -y_1}{x_2 -x_1}

m = \frac{-1-4}{1--2}

m = \frac{-5}{3}

The equation is then calculated using:

y = m(x - x_1) + y_1

This gives:

y =\frac{-5}{3}(x--2)+4

y =\frac{-5}{3}(x+2)+4

Open bracket

y = -\frac{5}{3}x-\frac{10}{3}+4

Take LCM

y = -\frac{5}{3}x+\frac{-10+12}{3}

y = -\frac{5}{3}x+\frac{2}{3}

6 0
3 years ago
the temperature is 75 degrees fahrenheit. if the temperature decreases 15 degrees, what is the new temperature
lisabon 2012 [21]

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Step-by-step explanation:

75 - 15 = 60

7 0
3 years ago
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Which expression is equivalent to 3 7/8-6 1/4
Serhud [2]

get a common denominator which is 24

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big number minus small number take sign of larger

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5  30/24

3  21/24

--------------

2  9/24


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Answer:

i feel that the coorect answer is b

Step-by-step explanation:


6 0
3 years ago
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