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Alexeev081 [22]
3 years ago
14

Can anyone help please?

Mathematics
1 answer:
DanielleElmas [232]3 years ago
5 0

Answer:

how do you need help. what's the problem

Step-by-step explanation:

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A circle has a sector with area 33 pi and a central angle of 11/6 pi radians. What is the area of a circle?
Mashutka [201]

Answer:

36π

Step-by-step explanation:

The area of a circle is given as:

A = \pi r^2

where r = radius of the circle

The area of a sector of a circle is given as:

A_s = \frac{\alpha }{2\pi} * \pi r^2

where α = central angle in radians

Since \pi r^2 is the area of a circle, A, this implies that:

A_s = \frac{\alpha }{360}  * A

A circle has a sector with area 33 pi and a central angle of 11/6 pi radians.

Therefore, the area of the circle, A, is:

33 \pi = \frac{\frac{11 \pi}{6} }{2 \pi} * A\\\\33\pi = \frac{11}{12} * A\\\\=> A = \frac{33\pi * 12}{11}\\ \\A = \frac{396 \pi}{11} \\\\A = 36\pi

The area of the circle is 36π.

5 0
3 years ago
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Which of the following numbers is a multiple of 8? A.98 B.124 C.512 D.27
Y_Kistochka [10]
C is your answer buddy brainliest please
7 0
3 years ago
Solve on [0,2pi). Answer in order from smallest to biggest<br> cos x sin x = sin x
Musya8 [376]

Answer:

0, π

Step-by-step explanation:

cos x sin x = sin x

cos x sin x - sin x = 0

sin x (cos x - 1) = 0

sin x = 0, x = 0, π

cos x - 1 = 0

cos x = 1, x = 0

So answers: 0, π

3 0
2 years ago
Express the polar coordinates (2,3pi/4) as Cartesian coordinates
Rus_ich [418]

The Cartesian equivalent of the polar coordinates (r, theta) is

(r cos t, r sin t), where t = theta.

So, (2, 3pi/4) becomes

(2 cos(3pi/4), 2 sin(3pi/4))

(2 • -sqrt{2}/2, 2 • sqrt{2}/2)

Answer: (-sqrt{2}, sqrt{2})

Done.

Note: sqrt = square root for short.

8 0
3 years ago
What adds to 5 and multiplies to -6
faust18 [17]
Your numbers would be 6 and -1
3 0
3 years ago
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