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2 years ago

How do scientists infer the presence of black holes since they can't be directly observed?

Mathematics

1 answer:

Andrej [43]2 years ago

7 0

Answer:

The presence of a black hole can be inferred through its interaction with other matter and with electromagnetic radiation such as visible light. Matter that falls onto a black hole can form an external accretion disk heated by friction, forming quasars, some of the brightest objects in the universe.

Step-by-step explanation:

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As a decimal 6 27/100

Brut [27]

Answer:

6.27

Step-by-step explanation:

627100=6+27100

We know that

27100

is the same as

27÷100

Therefore:

627100=6+(27÷100)

8 0

3 years ago

Pls help meeeee :))))

valentinak56 [21]

Answer:

31.4 inches

Step-by-step explanation:

:))

6 0

2 years ago

Read 2 more answers

Use the explicit formula an = a + (n-1). d to find the 500th term of the

nadezda [96]

Answer:

Step-by-step explanation:

The difference is a2 - a1 = 31 - 24 = 7

n = 500

a500 = a1 + (500 - 1) * 7

a500 = 24 + 499 * 7

a500 = 24 + 3493

a500 = 3517

8 0

2 years ago

Right triangles are similar. Always Sometimes Never

zavuch27 [327]

Answer:

Always

Step-by-step explanation:

Right triangles are always similar.

All right triangles have a 90 degree angle.

This means that, they would all look visually similar because of the 90 degree angle.

4 0

3 years ago

Read 2 more answers

Find the points which divide the line segment joining the points (0, -3) and (7,1) in the ratio 2:3

rewona [7]

Answer:

Known two points, list function expression, use

$y-y_{0}=k(x-x_{0})$

$k= \frac{y_{2} -y_{1\\}}{x_{2} -x_{1} }$

The function expression is

$y=\frac{4}{7}x-3$

It is known that the cross section of two points is 7, so the point of 2:3 is 14 / 5, that is, 0 + 14 / 5 is the abscissa of the point, which is substituted into the original equation to get y = - 7 / 5.

So the result is $(\frac{14}{5} ,-\frac{7}{5} )$

3 0

2 years ago