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Nataliya [291]
3 years ago
6

The sales tax rate in a city is 5.316%. how much sales taxes is changed on a camp stove that sells for $128.95?

Mathematics
1 answer:
adell [148]3 years ago
4 0
The sales tax would be $6.85
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Use CALCULUS to find coordinates of the turning point on C.
antiseptic1488 [7]
Oi 

Just calculating the differential. Step by step:

y=12 \sqrt{x} -x \frac{3}{2}-10 \\  \\ y=12x^{ \frac{1}{2} } -x \frac{3}{2}-10 \ \ \ \boxed{transform \  \sqrt{x} =x^{ \frac{1}{2} }}  \\  \\  Differentiating \\  \\ y'=12. \frac{1}{2}.x^{ \frac{1}{2}-1 } -1.x^{1-1}. \frac{3}{2}-0 \\  \\  y'=6.x^{ -\frac{1}{2} } -x^{0}. \frac{3}{2} \\  \\  y'=6. \frac{1}{x^{ \frac{1}{2} }}  -1. \frac{3}{2}  \\  \\  \boxed{y'=\frac{6}{ \sqrt{x} }  -\frac{3}{2}}

If you want to know where the tangent has no slope:

\frac{6}{ \sqrt{x} } - \frac{3}{2} =0 \\  \\  \frac{6}{ \sqrt{x} } = \frac{3}{2}  \\  \\ 3 \sqrt{x} =12 \\  \\  \sqrt{x} = \frac{12}{3}  \\  \\  \sqrt{x} =4 \\  \\   (\sqrt{x})^2 =4^2 \\  \\ x=16
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3 years ago
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ololo11 [35]
If Carla would have bought 4 plants it would have been 13 dollars from green touch

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8 0
3 years ago
The dDifference in hours between full times and the part timers to work three hours a day is 2 working hours how many hours per
hram777 [196]

full timers work 5 hours a day whereas Part timers work 3 hours a day!

<u>Step-by-step explanation:</u>

Here we have , The difference in hours between full times and the part timers to work three hours a day is 2 working hours  . We need to find that  how many hours per day to full timers work . Let's find out:

Let full timers work x hours , Part time workers work 3 hours a day , According to question, difference in hours between full times and the part timers to work three hours a day is 2 working hours  i.e.

⇒ x-3 = 2

Adding 3 to make x term alone :

⇒ x-3+3 = 2+3

⇒ x=5

Therefore, full timers work 5 hours a day whereas Part timers work 3 hours a day!

4 0
3 years ago
-11 - (-7)= simplify
Inessa [10]
-11-(-7)
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Your answer is -4

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