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Zina [86]
3 years ago
6

Help me Explain Answer for A

Mathematics
1 answer:
Olenka [21]3 years ago
5 0
Each time a rider is added, the cost of lunch goes up $4.25. L=n4.25
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The revenue, in dollars, of a company that makes toy cars can be modeled by the polynomial 3x2 + 4x – 60. The cost, in dollars,
Tems11 [23]

For this case we have the following quadratic functions:

Revenue: 3x ^ 2 + 4x - 60

Cost: 3x ^ 2 - x + 200

Then, we observe that the profit is given by the following mathematical relationship:

Profit = Revenue - Cost

Substituting values we have:

Profit = (3x ^ 2 + 4x - 60) - (3x ^ 2 - x + 200)

Making the corresponding calculations we have:

Profit = x ^ 2 (3-3) + x (4 + 1) + (-60-200)\\Profit = 5x - 260

Answer:

An expression that represents the profit is:

Profit = 5x - 260

4 0
3 years ago
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Find the volume of a cone that has a radius of 3 inches and a height of 9 inches. Use 3.14 for pi and round your answer to the n
aalyn [17]

Volume of the cone is 100 in³

Step-by-step explanation:

  • Step 1: Volume of a cone = 1/3 πr²h. Find volume of the cone where r = 3 inches and h = 9 inches.

Volume = 1/3 × 3.14 × 3² × 9

             = 84.78 in³ ≈ 100 in³ (rounding off to nearest hundredth)

6 0
3 years ago
Tracy brought 5 trays of plants for $105. Each tray contained 12 plants. Each plant cost the same amount. Plants can be purchase
KiRa [710]
131.25 but she would spend 26.25 more
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2 years ago
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Find the equation of the line that is perpendicular to y=-2x-9 and contains the points (8,-4)
avanturin [10]

The slope of the given line is -2, and since perpendicular lines have negative reciprocal slopes, the slope of the line we want to find is 1/2.

Substituting into point-slope form,

y+4=\frac{1}{2}(x-8)\\\\y+4=\frac{1}{2}x-4\\\\\boxed{y=\frac{1}{2}x-8}

6 0
1 year ago
Determine the range of values of k such that the equation x²-4kx+4k²+5k+7 = 0 has real roots. ​
slega [8]

Answer:

<h3>This is the answer of your question. ☺☺</h3>

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3 years ago
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