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Cloud [144]
3 years ago
10

Please help! Image Below

Mathematics
1 answer:
Vesna [10]3 years ago
7 0

Answer:

Area of the shaded region = Area of large circle - Area of small one!

So your answer = 125.1 cm^2

Step-by-step explanation:

Area of large circle = piR^2

= 3.14 * 11 * 11

= 379.4 cm^2

Area of the small circle = piR^2

= 3.14 * 9 * 9

= 254.34 cm^2

Area of the shaded region - (379.4 - 254.34)cm^2

= 125.1 cm^2

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Step-by-step explanation:

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What is the perimeter of this shape? Use numbers only.
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More on Areas. Farmer Jones, and his wife, Dr. Jones, both mathematicians, decide to build a fence in their field to keep the sh
Olin [163]

Answer:

Area covered by the fences will be 16.1 unit²

Step-by-step explanation:

Let the first parabola is represented by the function f(x) = 6x²

and second parabola by g(x) = x² + 9

point of intersection of the graphs will be determined when f(x) = g(x)

6x² = x² + 9

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x = ± 1.34

Now we will find the area between these curves drawn on the graph.

Area = \int_{-1.34}^{1.34}[f(x)-g(x)]dx=\int_{-1.34}^{1.34}[6x^{2}-(x^{2}+9)]dx

= \int_{-1.34}^{1.34}(5x^{2}-9)dx

= [\frac{5}{3}x^{3}-9x]_{-1.34}^{1.34}

= [\frac{5}{3}(-1.34)^{3}-9(-1.34)-\frac{5}{3}(1.34)^{3}+9(1.34)]

= [-4.01+12.06-4.01+12.06]

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3 years ago
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