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jok3333 [9.3K]
3 years ago
11

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

Mathematics
1 answer:
Andrej [43]3 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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The graph below shows a system of equations: y = -x - 2 and y = 2x - 5. The x-coordinate of the solution to the system of equati
sergey [27]

ANSWER

The x-coordinate of the solution to the system of equations is 1.

EXPLANATION

The given equations are:

y = -x - 2

and

y = 2x - 5.

We want to find the x-coordinate of the solution to the system of equations.

We equate the two equations to obtain an equation in x.

This implies that,

2x-5=-x-2

Group similar terms to obtain:

2x+x=-2+5

Simplify

3x=3

Divide both sides by 3.

x=1

The x-coordinate of the solution to the system of equations is 1

4 0
3 years ago
A class consists of 55% bots and 45% girls. It is observed that 25% of the class are boys and scored an A on the test, and 35% o
oksian1 [2.3K]

Answer:

0.1575

Step-by-step explanation:

Probability of picking a girl is 0.45 and probability of a girl scoring A is 0.35.

Therefore probability of a girl scoring A is 0.45*0.35=0.1575

8 0
3 years ago
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brilliants [131]

Answer:

\frac{log(8)}{log(2)}  = 3

Good luck friend, I really hope this helps ya :)

7 0
2 years ago
Jonathan is catering an event for one of his clients. He has a maximum of $200 to spend on appetizers. Crab cakes cost $2.25 per
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101.25+81.25=182.5 is the answer of how much the cost.
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3 years ago
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Two number cubes are rolled. What is the probability that the sum of the numbers rolled is either 3 or 9? as a fraction
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If you are reffering to dice itd be 4/12 simplified is 1/3

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3 years ago
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