AD => Cos 20 = 12.6/H => H = 12.6/Cos 20 = 13.4cm
AB => √13.4^2 - 12.6^2 = 4.6 cm
BC = √19.3^2 - 12.6^2 = 14.6 cm
AC = 14.6 + 4.6 = 19.2 cm
2,400 cause 6% is 0.06 then u multiply that with the 40,000 and u get 2,400
Answer:
a. 
b. 
Step-by-step explanation:
The variable cost of $ 2 implies that for each manufactured calculator the total cost increases $ 2.
The fixed cost of $ 105 implies that regardless of the number of manufactured calculators there will always be a cost of $ 105.
If we call x the number of manufactured calculators then the total cost c(x) will be:

Then, the cost of manufactured 50 calculators a day is:



Using
[(n-2)180]÷n = 140
(n-2)180 = 140n
180n -360 = 140n
180n -140n = 360
40n = 360
n=360÷4 = 90 sides