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Katena32 [7]
2 years ago
8

Which of the following expenses is not a variable cost?

Mathematics
2 answers:
Sindrei [870]2 years ago
4 0
It’s rent because variables are related to the sales volume of your business
34kurt2 years ago
4 0
It should be materials, everything else is at a rate, and although rent can change, material value is more likely to change on a given day compared to rent. Think of gas for example which is a material, the price is different every day.
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2 years ago
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Use a graph in a (-2π, 2π, π/2) by (-3, 3, 1) viewing rectangle to complete the identity.
yaroslaw [1]

First, notice that:

2\tan (\frac{x}{2})=2\cdot(\pm\sqrt[]{\frac{1-cosx}{1+\cos x})}

And in the denominator we have:

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then, we have on the original expression:

\begin{gathered} \frac{2\tan(\frac{x}{2})}{1+\tan^2(\frac{x}{2})}=\frac{2\cdot\pm\sqrt[]{\frac{1-\cos x}{1+cosx}}}{\frac{2}{1+\cos x}}=\frac{2\cdot(\pm\sqrt[]{1-cosx})\cdot(1+\cos x)}{2\cdot(\sqrt[]{1+cosx})} \\ =(\sqrt[]{1-\cos x})\cdot(\sqrt[]{1+\cos x})=\sqrt[]{(1-\cos x)(1+\cos x)} \\ =\sqrt[]{1-\cos^2x}=\sqrt[]{\sin^2x}=\sin x \end{gathered}

therefore, the identity equals to sinx

8 0
1 year ago
The cost for roberta's college next year $11000 she has a Grant for $1500 a scholarship of $5000 she plans to earn 40% of the re
9966 [12]
She will have to pay $2,700.

She is starting with a bill of $11,000. If we subtract the 1500 grant and 5000 scholarship, she has left a bill of 4500.

She is going to earn 40% of it, so she still have to pay 60% of it. 

0.6 x 4500 = 2700
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3 years ago
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Karolina [17]
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3 years ago
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