Answer:
10 miles
Step-by-step explanation:
d=√8²+6²=√100= 10 miles
It would be 49,009 because LA of a cone is height (50) times the radius (120) and that equals about 49,009.
25.59- 9.99= 15.60
15.60/ 0.05 = 312
312 minutes this month
Answer:
Widgets should be sold by $38.88 to maximize the profit.
Step-by-step explanation:
Vertex of a quadratic function:
Suppose we have a quadratic function in the following format:

It's vertex is the point 
In which


Where

If a<0, the vertex is a maximum point, that is, the maximum value happens at
, and it's value is
.
In this question:
The profit is given by:

Which is a quadratic function with 
The maximum profit happens at the x of the vertex. Thus

Widgets should be sold by $38.88 to maximize the profit.
The domain is -1, 0, 1, 2, 3, 4. Hope this helps.