Answer:
-34(39) + -81........
Step-by-step explanation:
Answer:
a and c
Step-by-step explanation:
the answer is b the ratio would be 4:20 but it is simplified, therefor 1:5
Answer:
the total amount of water supplier per hour to the region within a circle of radius R=110 ( that is from distance r, 0<r<110)
Step-by-step explanation:
if f(r) describes the water supplied at a distance r , the total amount supplied inside a region that goes from 0 until the circle of radius R, is the sum of all f(r) values from 0 until R, that is the integral value over these limits.
The formula deduction can be found in the attached picture
There is an "r" that multiplies e^-r as result of changing from rectangular coordinates to polar ones.(dx*dy --> r*dr*da)
Answer:
6000000
Step-by-step explanation:
3(106)+3(106)
=(3)(1000000)+3(106)
=3000000+3(106)
=3000000+(3)(1000000)
=3000000+3000000
=6000000