The indefinite integral ∫dx/x is ln(x), so your integral is
... 7(ln(15)-ln(3)) = 7ln(15/3)
... = 7ln(5) ≈ 11.266065387
0.93 should be your answer
X2+x-6=0
Your answer:
x = 2, -3
It is 2.4 hours I hope this helped! :)
To compare fractions, you need a common denominator.
6 goes into 18 three times. If we multiply (5/6) by 3 on top and bottom you get
Now we can compare numerators, since 15 > 13