an astronomer estimated that a canyon on another planet was 2.5x10^3 kilometers long which is equivalent
25,000km
2,500km
0.025km
0.0025km
please help
2,500
Right
What is 2.5 times 10^3?
To find the answer, we need to determine the equivalent length of the canyon in kilometers using scientific notation.
The number given, 2.5x10^3, can be interpreted as 2.5 multiplied by 10 raised to the power of 3. In scientific notation, any number greater than 1 will have a positive exponent, and any number between 0 and 1 will have a negative exponent.
Since the exponent is positive (3 in this case), we move the decimal point in 2.5 three places to the right to get the equivalent value.
So, 2.5x10^3 kilometers is equal to:
2.5 x 10^3 = 2,500 kilometers
Therefore, the correct answer is 2,500km.