So the question ask to find how to integrate cos2t without using substitution and base on my research, the integral of the cos2t = (1/2) sin(2t), and negate the said integral because the derivative of cosx is - sinx. I hope you are satisfied with my answer and feel free to ask for more
Answer:
You taught for 4 hours
Step-by-step explanation:
Let this number of hours be x. Then:
Total earned = $20 + ($8/hr)x
Equate this to $52 and then solve the resulting equation for x:
20 + 8x = 52
Then 8x = 32, and x = 4. You taught for 4 hours.
Answer:
no, because the spoon has been in your mouth and saliva has been on the spoon, so no you should no.
Let v = number of video's she bought
Let c = number of CD's she bought
v+c=16
1495v+1688c=9355
Multiply both sides of (1) by 1495
and subtract (1) from (2)
-1495v-1495c=-8970
193c=386
c=2h
false. range of 
is $[0,\pi]$
