So what is the question here? if he is paid $30 an hour for 4 hours that is $120 if the total fee is $170 then the initial fee for the job is $50.
Double angle formula for cos(2x) is
cos(2x)=cos^2(x)-sin^2(x)
Substitute x=4theta, then
cos(8theta)=cos^2(4theta)-sin^2(4theta)
=>
cos^2(4theta)-sin^2(4theta) = cos(8theta)
Answer:
x=-2, y=2
Step-by-step explanation:
-8x +4y=24
-7x+7y=28
substitute 4y=24+8x
y=6+2x in second equation and hence we find X=-2
put value of X in either equation and get value of y=2
I hope this helps you
x^4/3+2/3
x^6/3
x^2
The answer should be 16 i hope this helped