Answer:
7.022
Explanation:
2.589x10^6/
3.687x10^5
1. 2.589/3.687 = 0.702197 [Separate out and divide just the decimal portion first]
2. 10^6/10^5 = 10^(6-5) = 10^1 [Divide the exponent portion next] When dividing, subtract the denominator exponent from the numerator exponent: (6-5) = 1. The exponent is 1.
0.702197x10^1 [Put the two pieces together: 1. and 2.]
7.02197 [Move the decimal point once to the right, which will reduce 10^1 to 10^0, or 1]
7.02197 or 7.022 to 4 sig figs
