If one kg. of potatoes costs $4.99, what would 1.8 kg cost?
1 answer:
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Answer:
See explanation
Step-by-step explanation:
The given absolute value is
When we simplify this we get:
Any absolute value expression whose value is less than 0.14 is a solution.
For instance :
are all less than the 0.14
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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)
