We can simplify this equation using logaritmic rules. logx-logb = log(x/b)
than our equation becomes.
log3((18x^3)/(2x)) = log3(144) or
log3(9x^2) = log3(144)
for x= -4 we get that left side is equal to right side
log3(9*(-4)^2) = log3(144)
but if you put that value of x=-4 in start you will get log3(18(-4)^3) which is log of negative value which is imposible. That is why x=-4 is extraneous solution.
Answer:
what is your question...?
<h3>
Answer: $3.50</h3>
Work Shown:
7% = 7/100 = 0.07
7% of $50 = 0.07*50 = 3.50
Extra info: The total price including tax would be 50+3.50 = 53.50 dollars. However, it seems like your teacher is only interested in the tax only.
Step-by-step explanation:
- 3(x-2)>12
- 3x-6>12
- 3x>12+6
- x>18/3
- x>6
hope it helps.