Ans: A
Sub t=2 in the equation
Answer:
24.76 mine
Step-by-step explanation:
The first thing is to calculate the area of the region, which we can calculate since we have the density and the population. The area would be the quotient between population and density:
260000/135 = 1925.93
The area would be 1925.93 square mine
We know that the area is given by:
A = pi * r ^ 2
we solve to r
r ^ 2 = A / pi
r ^ 2 = 1925.92 / 3.14
r ^ 2 = 613.3
r = 24.76
the radius is equal to 24.76 mine
To find the perimeter, just add all those numbers.
4.8+2.3+2.1+3.9=13.1
Hope this helps!
I'm pretty sure the answer is: <u><em>h = 9</em></u>
<u><em></em></u>
<u><em>Reason:</em></u>
The question tells us that to complete the equation that represents the relationship between d and h, so for "d", its d = 1, for h, it is 9 per each "days"
from the hours.