A = 71.5 degrees (1 dp)
cos(A) = (21^2 + 16^2 - 22^2) / (2 x 21 x 16)
= 0.31696...
A = cos^-1(0.31696...) = 71.5 degrees
D because its true answer :)
Answer: Our required function F(t) would be
Step-by-step explanation:
Since we have given that
Let the number of hours be 't'.
Amount for each hour = $6
Let F(t) be the total fee for a single job that took t hours for her to complete.
According to question, for 4 hour job, total fee is $32.
So, it becomes,
Hence, our required function F(t) would be
Answer:
The answer is 13.
Step-by-step explanation:
No comment...
0.7 is the answer. Hope this helps