Answer:
she has more brown shoes than black shoes
Step-by-step explanation:
It is -3 degrees Celsius per 1 hour. <span />
X = 8.5 because 8.5 x 2 = 17 and 17 + 1 = 18
First, we have to convert our function (of x) into a function of y (we revolve the curve around the y-axis). So:
And the derivative of x:
Now, we can calculate the area of the surface:
We could calculate this integral (not very hard, but long), or use
(1),
(2) and
(3) to get:
Calculate indefinite integral:
And the area:
Answer D.