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anastassius [24]
3 years ago
12

For every dollar increase in the price of music CDs sold by a record label, the demand for the CDs drops by 100. However, 4,000

CDs have already been preordered. If x is the price of a CD, which statement is true about the revenue, R, of the record label?
Mathematics
1 answer:
JulsSmile [24]3 years ago
6 0
I think its D, I'm probably wrong.
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The table shows the input and output of a function Table(input:3,4,6,11. Output:5,7,11,21) (a) Explain what makes this set of da
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Answer:

(a) The data set is a function, since for each input value {3,4,6,11} there is a single output value {5,7,11,21}

(B) A function is a mathematical relationship that associates one or more inputs with a single output value. So that the data set is not a function, there should be - for one or more values ​​of the input - more than one output.

for example, if for the input value {3} there were two outputs {5, -5} then, the data set would not be a function.

The frelation y ^ 2 = x is not a function because:

When x = 1, y = +1 and y = -1.

(c) The set of data provided can be represented by the equation of a line of the form y = mx + b

The slope is:

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m =\frac{7-5}{4-3}

m = 2

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Then, the function is:

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You can substitute any of the points shown in the equation and check that equality is satisfied, for example:

(11 , 21)

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y = 22-1

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Lines l and k are parallel to each other. mA=120 degrees. and mC=80 degrees. What is the number of degrees in mB??
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Answer:

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Step-by-step explanation:

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What is the volume of a figure with that is 3 inches wide, 3 inches tall and 7 inches long?​
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Answer:

Step-by-step explanation:

volume=3×3×7=63 inch³

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2 years ago
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