Answer:
Step-by-step explanation:
let the distance from central pole to one end=r
8/r=tan 40°
r=8/tan40=8 cot~40°=8 cot(90-50)=8 tan ~50≈9.534
2r≈19.068≈ 19.1
width of tent=19.1 ft
Answer:

Step-by-step explanation:
We are given that a function

We have to find the derivative of the function
Let 

Taking ln on both sides

By using 
Differentiate w.r.t x




Differentiate y w.r.t x

Using the value of du/dx

The answers should be
1. -12d-2
2. 56a+32b
3. 6a-12b+18
4. 8g+8h-16
21 divided by 7 equals 3 and 3 x 7 is 21 the missing factor is 3 and the missing quotient is 21