Answer:
5
Step-by-step explanation:
because ?*9=45
45÷9=5
Answer:-16<-13<-6<1<5<6<12
1
-16
12
Step-by-step explanation:
To evaluate

First, we input 0, for theta in the function to obtain:

This is an indeterminate form.
So, we apply L'Hopital's rule by differentiating the numerator and the denominator as follows:
Let the length of the guy wire be x feet.
cos 51.8 = 400/x
x = 400/cos 51.8 = 646.82 feet.
The answer is 646.82 feet.
1.29 is 6.45 divided by 5