Answer:
a)
b)
Step-by-step explanation:
Given the cost function as C(x):
a) Find the average cost function,
if C is the cost of selling x units, The Average can be denoted by:
this is the average cost function
b) The minimum average cost:
To find the minimum average cost, we'll have to differentiate the average cost function . and equate it to zero. (like finding the stationary point of any function)
now just simplify:
we've found the derivative of C(x), now to find the minimum we'll equate this derivative to zero.
and now solve for x
at this value of x the average cost is minimum.
This is the minimum average cost!
Answer:
D. 31
Step-by-step explanation:
To find the mean of any group of numbers, you simply add up all the numbers and then divide by how many numbers there are.
Using a calculator or a pencil, add the following:
27 + 28 + 30 +28 + 28 + 31 + 29 + 33 + 28 + 28 + 31 + 33 + 41 + 41 + 25
= 461
The last step is to divide 461 by 15:
461/15 = 30.73
Round 30.73 to the nearest whole number and you get D. 31
Answer:
B.) y=csc x
Step-by-step explanation:
The cosecant function has a minimum magnitude of 1, so its range excludes any values in the range -1 < y < 1.
y = csc(x) . . . has a range that does not include -0.8