If you add up all of the money he made and divide it by the amount he made via tips, you will see that the percent tip he received was 16%
Answer:
\int\limits^{\pi/2} _0 (1+4cos^{2} (2x)dx
Step-by-step explanation:
Arc length is calculated by dividing the arcs in to small segments ds
By pythagoren theorem

then integrate ds to get arc length.
We are given a function as
y = sin 2x in the interval [0, pi/2]
To find arc length in the interval
Arc length 
Hence arc length would be
B)
Answer:

Step-by-step explanation:
i) 
Answer:
64.02 grams
Step-by-step explanation:
81.82-17.8 = 64.02