Answer:
a) The value of 
is 81.30.
b) The value of is 81.
Step-by-step explanation:
a) The value of is the ratio of the mass of the Earth to the mass of the Moon. That is:
The value of is 81.30.
b) If is a integer, then the result must have only two significant figures. Given the result, we must approximate to the closest integer. That is:
The value of is 81.
9514 1404 393
Answer:
67 million square miles
Step-by-step explanation:
The area of a sphere is given by ...
A = 4πr²
So the area of the Earth is approximately ...
A = 4π(4000 mi)² ≈ 2.01×10^8 mi²
The area of the 1/3 that is not covered by water is approximately ...
(2.01×10^2 mi²)/3 = 6.7×10^7 mi²
The land area is estimated to be about 67 million square miles.
Answer:
This is a trick that I have learned
Step-by-step explanation:
Just right click on the question or answer
Then click inspect element
and the question will tell you which answer is actually correct
and the answer will tell you if it is correct or not.
I can’t understand your speaking a different laungue do u speak English?
23 inches
x = Mindy's height
2x - 20 = 66
- 20 -20
2x = 46
/2 /2
x = 23
