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SpyIntel [72]
3 years ago
13

HELP HELP EMERGENCY PLEASE HELP ME DO THIS IS DUE TODAY

Mathematics
1 answer:
ruslelena [56]3 years ago
8 0

Answer:

12.56

Step-by-step explanation:

2\pi r/2 = 2(3.14)(4)/2 = 12.56

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A a book is originally priced at $65 the online retailer gives a discount and the book is now priced at $52 into the percentage
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Answer:

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Step-by-step explanation:

Original price = $65

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Discount = $13

The percentage discount is calculated as:

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3 years ago
Solve 2x - y = -6 if the domain is (-2,-1, 0, 1).
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Answer:

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Step-by-step explanation:

We are given an equation 2x - y = - 6.

We have to solve it.  

The linear two-variable equation can be rearranged as y = 2x + 6 ........ (1)

Now, we need x values to get corresponding y values.{Since, there are two variables and only one equation}

It is given that the domain is (- 2, - 1, 0, 1).

Therefore, those are the x values for which we have to solve for y from equation (1).

For, x = - 2, y = 2( - 2 ) + 6 = 2 (Answer)

For, x = - 1, y = 2( - 1 ) + 6 = 4 (Answer)

For, x = 0, y = 2( 0 ) + 6 = 6 (Answer)

For, x = 1, y = 2( 1 ) + 6 = 8 (Answer)

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