3 years ago

If y = -6cosx, what is the amplitude?

1 answer:

8 0

$\displaystyle\bf\\y=-6cos\,x\\\\\textbf{is equivalent to:}\\\\y=6cos(x+\pi)\\\\\textbf{where 6 is the maximum value or amplitude}\\\\\implies~~~\boxed{\bf~amplitude=6}$

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Sam built a circular fenced-in section for some of his animals .the section has a circumference of 55 meters .what is the approx

otez555 [7]

Answer:

243 m²

Step-by-step explanation:

Area of circle:

A = πr²

Circumference of circle:

C = 2πr

Given

C = 55 m

Find r using the second formula:

2πr = 55
2*3.14r = 55
r = 55/6.28
r = 8.8 (rounded)

Find area using the first formula:

A = 3.14*8.8²
A = 243 m² (rounded)

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3 years ago

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11111nata11111 [884]

Vertical angles are equal

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-3x - x = -2 - 58
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x = -60/-4
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boyakko [2]

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Gemiola [76]

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