3 years ago

$43 dinner 18% gratuity

1 answer:

7 0

So you want to know how much was paid in total?

First, how much is 18% of 43?

43*0.18 =8.64

so the total prize will be the sum of the gratuty and the dinner prize: 43+8.64=51.64

and this is the solution!

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In this case, the function is:

f(x) = Sin(x)/(1 + Cos(x))

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k(x) = 1 - Cos(x)

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Replacing these in the rule, we get:

$f'(x) = \frac{Cos(x)*(1 - Cos(x)) - Sin(x)*Sin(x)}{(1 - Cos(x))^2}$

Now we can simplify that:

$f'(x) = \frac{Cos(x)*(1 - Cos(x)) - Sin(x)*Sin(x)}{(1 - Cos(x))^2} = \frac{Cos(x) - Cos^2(x) - Sin^2(x)}{(1 - Cos(x))^2}$

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