Answer: 
Step-by-step explanation: d is length of a hypotenuse in triangle. Use Pytago theorem d = 
We have that
y = (4/3)* cos (3/2)x----------> y = (4/3)* cos (1.5x)
using a graph tool
the answer
see the attached figure
Answer:
The working is done in the image attached.
Okay, first you got to simplify the mixed numbers. Example: 2 and 1/2. I got 5/2, how is this? first multiply 2 * 2 then add 1 from the numerator. sorry if this doesn't make since. You got to do this before you do the actual math.