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Sedbober [7]
3 years ago
14

Brad will put fencing around a circular

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
3 0

Answer:

20π ft²

Step-by-step explanation:

Calculate the circumference of this circular area:  C = 2πr, where r is the radius:

C = 2π(10 ft) = 20π ft²

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The measure of an angle is 8 times the measure of its complement. tina writes an equation and finds the correct measure of each
pogonyaev
One of the unknown angles (let's called it n) has a complement (meaning their sum adds up to 90 degrees) and the other angle is 8 times the unknown angle (8n)

With all this information, you should have the equation:

n + 8n = 90

To solve, combine like terms to get:

9n = 90

Divide by 9 on both sides to isolate the variable n.

n = 10

Now we plug back in to find our angle measurements. The first angle, n, is 10 degrees. The second angle, 8n, is 8 * 10 which is 80; the second angle is 80 degrees. 
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4/7
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A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the
7nadin3 [17]

Answer:

Widgets should be sold by $38.88 to maximize the profit.

Step-by-step explanation:

Vertex of a quadratic function:

Suppose we have a quadratic function in the following format:

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It's vertex is the point (x_{v}, y_{v})

In which

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If a<0, the vertex is a maximum point, that is, the maximum value happens at x_{v}, and it's value is y_{v}.

In this question:

The profit is given by:

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Which is a quadratic function with a = -9, b = 700, c = -6005

The maximum profit happens at the x of the vertex. Thus

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7 0
3 years ago
What is the answer for 30/-31?
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Answer:

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Step-by-step explanation:

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