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adoni [48]
3 years ago
10

recycled cds incorporated, offers a choice of 5 used cds for $26, with each additional cd costing $4. write a cost function for

purchasing 5 or more cds. what will the cost of buying 6 cds be ? let x represent the number of cds over 5.
Mathematics
1 answer:
Luda [366]3 years ago
3 0
If $26 represents the cost of  the 5 used CDs, than your formula would be "26+4x" ,x being the amount of extra CDs you purchase.


The number CDs minus 5 is our x value, because the first 5 are the used CDs bundled into the $26 group.

26+4(6-5)
26+4(1)
26+4
30

6 CDs would cost $30
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3 years ago
Consider the following figure.
Karolina [17]

Answer:

BD = 16

Step-by-step explanation:

By applying mean proportional theorem in the given right triangles,

\frac{AD}{BD}=\frac{BD}{CD}

AD × CD = BD²

8 × 32 = BD²

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3 years ago
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hammer [34]

Answer:

7-\sqrt{2}i

Step-by-step explanation:

Given number is 7+\sqrt{2}i. We need to find the complex conjugate of the given number.

We will use the general rule to find out the complex conjugate of the number.

The complex conjugate of a+bi will be a-bi

And the complex conjugate of 7+\sqrt{2}i\ became\ 7-\sqrt{2}i

So, the complex conjugate of 7+\sqrt{2}i is 7-\sqrt{2}i

3 0
4 years ago
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34kurt
For the answer to the question above, <span>Well, first let us put up a functional equation. </span>
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<span>which is approximately 40,200?</span>
5 0
4 years ago
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