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umka2103 [35]
3 years ago
9

Notebook cost $8.50 plus sales tax. After sales tax, The Notebook is $8.86. What is the sale tax rate?

Mathematics
1 answer:
statuscvo [17]3 years ago
5 0

Answer:what is 86-50=36 us the tax rate


Step-by-step explanation:


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Step-by-step explanation:

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The area of the square, the
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Answer:

B.

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

Please have a look at the attached photo.  

My answer:

As given in the question, we know that:

The ratio of the area of the circle to the area  of the square is π/4

  • The formula to find the volume of the cone is:

V = 1/3*the height*the base area

<=> V1 = 1/3*h*πr^{2}

  • The formula to find the volume of the pyramid is:

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=> the ratio of volume of the cone to the pyramid is:

= \frac{V1}{V2}

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= π/4

S we can conclude that the volume of the cone equals π/4  the volume of the  pyramid

Hope it will find you well.

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