(2.4x10^3)+(5.7x10^2)

what is the value

2970

Step-by-step explanation:

First, you do the first exponent in the first part which is 10^3 and the answer for that is 1000. Then you do 2.4x1000 which is 2400. Afterwards you do the second part's exponent which is 10^2 and you get 100 for that. Next, you do 5.7x100 which is 570. Finally you add 2400+570 and get 2970.

To find the average rate of change of any set of data you have to subtract the value at the initial point to the value at the final point, and divide this by the subtraction of the initial point to the final point.

In this case, the final point is year 2013 and the initial point is 2004, then:

average rate of change = (57.56 - 62.33)/(2013 - 2004) = -0.53

This represents the average change of annual rainfall, that is, the rainfall decrease, on average, 0.53 inches from one year to the next one in this period of time.