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4 years ago

F(x)=2+3cosπ10(x−3)Find f(47).

2 answers:

7 0

f(x) = 2 + 3cos(10π(x - 3))
f(47) = 2 + 3cos(10(3.14)(47 - 3))
f(47) = 2 + 3cos(31.4(45))
f(47) = 2 + 3cos(1413)
f(47) = 2 + 3(0.891006524)
f(47) = 2 + 2.673019573
f(47) = 4.673019573

Marina CMI [18]4 years ago

7 0

F(x) = 2 + 3cos(10π(x - 3))
f(47) = 2 + 3cos(10(3.14)(47 - 3))
f(47) = 2 + 3cos(31.4(45))
f(47) = 2 + 3cos(1413)
f(47) = 2 + 3(0.891006524)
f(47) = 2 + 2.673019573
<span>f(47) = 4.673019573
is the right awnser </span>

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Using a graphing calculator, we have the following calculation summary:

Sum of X = 5956
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The regression equation is represented as:

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Where:

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2 years ago

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4 years ago

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3.24 × 100 = $324

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Substituting x = 100 - y into equation 1, it becomes

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4 years ago

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The correct answer is 25

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3 years ago

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