Evaluate the double integral by first identifying it as the volume of a solid. \int \intR (5 x) dA, R = {(x, y) | 0 x 5, 0 y 3.

37.5

Step-by-step explanation:

Given that:

We are to evaluate the integral of bounded by the region

0 ≤ x ≤ 5, 0 ≤ y ≤ 3

∴

=

=

=

=

=

=

=

= 37.5

thats not a system of equations, that is a solution

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies