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Yakvenalex [24]
2 years ago
12

Can someone please help

Mathematics
1 answer:
QveST [7]2 years ago
8 0
B . 2 and 9... Brainleist please
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Y = x + 2y = -2x + 2y = -3x + 2y = -5x + 2y = -
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152

Step-by-step explanation:

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If y varies directly with x and y = -15 when x = 3, find x when y = 10.
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like here x= 3 and y= -15

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4 0
2 years ago
A circle with radius 3 has a sector with a central angle of 1/9 pi radians
marissa [1.9K]

Complete question:

A circle with radius 3 has a sector with a central angle of 1/9 pi radians

what is the area of the sector?

Answer:

The area of the sector = \frac{\pi}{2} square units

Step-by-step explanation:

To find the area of the sector of a circle, let's use the formula:

A = \frac{1}{2} r^2 \theta

Where, A = area

r = radius = 3

\theta = \frac{1}{9}\pi

Substituting values in the formula, we have:

A = \frac{1}{2}*3^2* \frac{1}{9}\pi

A = \frac{1}{2}*9* \frac{1}{9}\pi

A = 4.5 * \frac{1}{9}\pi

A = \frac{\pi}{2}

The area of the sector = \frac{\pi}{2} square units

8 0
3 years ago
Can someone please help me
IrinaK [193]
For the mean, add together all of the numbers together (let's call the total x) and count how many numbers there are. (let's call this number y). divide x by y, and that is your mean. for the median, put all the numbers in order, and the median is the number in the middle. if there are two numbers in the middle, add them together and divide them by 2.
6 0
3 years ago
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