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eduard
3 years ago
9

If 15 books cost $90, what is the unit price?

Mathematics
2 answers:
iren2701 [21]3 years ago
5 0
$6
explanation: 6*15 is 90
creativ13 [48]3 years ago
4 0

Answer:

$6/ book

Step-by-step explanation:

Unit price = Total cost/ total number of items

                = 90/15

                =$6 per book

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Limit as x approaches 0 of csc3x/cotx
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For instance, we can find the lim by using the number -.00001 for x and solve
<span>csc(3x) / cot(x)
</span>csc(3*-.00001) / cot(-.00001) = .333333... = 1 /3

We also need to check coming from the right. We will use the number .00001 for x
csc(3x) / cot(x)
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So since we are getting 1/3 from the left and right we can say as x approaches 0 the limit is 1/3

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3 years ago
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Lostsunrise [7]
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8 0
3 years ago
You are purchasing books summer reading for $4.50 each. Part A: Your total cost, C, depends on,The input is,and the output is,Pa
Crazy boy [7]

Answer:

Part A) see the explanation

Part B) C(12)=\$54

Step-by-step explanation:

Part A)

we know that

A relationship between two variables, x, and C, represent a proportional variation if it can be expressed in the form k=\frac{C}{x} or C=kx

Let

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x ----> is the number of books (represent the input or independent variable)

In this problem

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Part B)  we know that

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In this problem the constant k is given

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In function notation

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3 years ago
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Answer:idk

Step-by-step explanation:

7 0
3 years ago
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How do you illustrate quadratic equation in one varible?<br>​
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Answer:

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Step-by-step explanation:

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