Answer: 21,120
Step-by-step explanation:
So your going to use the feet because you are seeing how many miles so what I did was multiply 5,280 to 4 and i got 21,120
Answer:
Possible values of x are 50 < x < 110.
Step-by-step explanation:
Consider the perimeter of the field:
2x + 2(x + 30) < 500
2x + 2x + 60 < 500
4x < 440
x < 110.
Consider the area of the field:
x(x + 30 ) > 4000
x^2 + 30x - 4000 > 0
(x - 50)(x + 80) > 0
The critical values are x = -80 and 50.
As x is a width it must be positive so x > 50.
ANSWER
It would take 45 good years
<u>EXPLANATION</u>
We calculate simple interest using the formula,

From the question,
dollars
%
and
dollars
We substitute into the above formula






Therefore it would take 45 years.
Answer:
1 minute and 12 seconds is 2 % of an hour.
Step-by-step explanation:
The surface area formula for any sphere is 4(pi)(radius)^2
The radius is half of the diameter.
18.6 / 2 = 9.3
So, plug into the formula and solve.
4(3.14)(9.3)^2 = 1086.3 mm^2