It’s really easy all you have to do is plug in the numbers
(In order)
-1, 1, 3, 5, 7, 9
Gross=amount earned not minusing tax
net=amount earned minus tax
gross=558
net=423.65
deduction=gross-net
deduction=558-423.65=134.35
deduction=$134.35
Dy/dx = (ycos(x))/(1 + y²)
(1 + y²)/y dy = cos(x) dx
(1/y + y) dy = cos(x) dx
Integrating:
ln(y) + y²/2 = sin(x) + c
ln(1) + 1/2 = sin(0) + c
c = 1/2
Thus,
ln(y) + y²/2 = sin(x) + 1/2
There are 200 students in the group.
To find this, you divide 70 by 0.35 (35%). This will give you 200. To check this, multiply 200 by 0.35 and you will get 70. Thus making 200 the answer.
I hope this helps!
