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riadik2000 [5.3K]
3 years ago
11

The radius of Mars is about 3.4 times 10^3 km. What is the approximate surface area of Mars? Use the formula for the surface are

a of a sphere, S.A.=4pieR^2. Write your answer in scientific notation
Mathematics
1 answer:
Stella [2.4K]3 years ago
3 0

Answer: the answer is a hard doosie

Step-by-step explanation:

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The population density of the world is calculated by finding the ratio of the total number of people in the world to the area of
Romashka [77]

Answer:

51

Step-by-step explanation:

A = Surface area of the Earth = 1.5\times 10^8\ \text{km}^2

Total number of people on Earth = 7.594 billion as of 2018 = 7.594\times 10^9

We need to find the number of people living in each square km of land area.

So, we need to divide the number of people by the land area of the Earth.

1.5\times 10^8\ \text{km}^2=7.594\times 10^9\ \text{people}

\Rightarrow 1\ \text{km}^2=\dfrac{7.594\times 10^9}{1.5\times 10^8}

\Rightarrow 1\ \text{km}^2=50.63\approx 51\ \text{people}

So, 51 people will inhabit each square km of land area.

5 0
3 years ago
I will MARK CROWN just need help
atroni [7]

Answer:

c

Step-by-step explanation:

8 student out of 24 are female so that should be the answer

7 0
3 years ago
What is the exponent of 50
german
2×5^{2} if you don't understand its 2 times 5 to the second power.
6 0
3 years ago
Nicholas says that (2^6)(2^6) equals 2^12, which also equals 4^6. is this true? PLEASE EXPLAIN
Umnica [9.8K]

When you multiply two numbers in exponential notation whose bases are the same, you just keep the base the same and add the exponents.

In this case, you have (2^6) * (2^6) = 2^(6 + 6) = 2^12.

We can change the base of 4^6 into 2:

(2^2)^6

Is this the same as 2^12? Well, when we have an expression like that above, we multiply the exponents together, so we get: (2^2)^6 = 2^12.

Therefore, Nicholas is correct.

5 0
3 years ago
Read 2 more answers
This relation is a function:<br> {(5,-2), (6,-2),(7,-2), (8,-2)}<br> A.True<br> B.False
AlladinOne [14]

Answer:

true

Step-by-step explanation:

each x-value have exactly only one y-value

8 0
3 years ago
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