Answer:
B. x = 2.77
Step-by-step explanation:
3^x = 21
You first look for a base for 21 that is 3 to the power of something.
21 = 3^2.77
So 3^x = 2^2.77
They have the same base so
x= 2.77
Answer:
-84
Step-by-step explanation:
i think this is right but i'm not sure
Answer:
The ratio between them is approximately
, therefore the correct answer is A.
Step-by-step explanation:
In order to calculate the ratio of the diameter of the Sun to the diameter of the Earth we will first represent the Earth's diameter as a scientific notation, to do this we will add one to the power of ten for every time the comma walks to the left until there's only one number to the left. This is done to make the division easier,

The ratio is given by the Sun's diameter divided by the Earth's, as shown below:

The ratio between them is approximately
, therefore the correct answer is A.
Divide the numerator and denominator by 5 and get 1/12
so 5/60 simplified is 1/12
Hope this helps! :D
Answer:
n=8
Step-by-step explanation:
