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Brrunno [24]
2 years ago
11

A curve has equation y = x²(x - 2) Work out the gradient of the curve at the point (3,9).

Mathematics
1 answer:
slava [35]2 years ago
4 0

Answer:

y = x^2 (x - 2) = x^3 - 2 x^2

dy/dx = 3 x^2 - 4 x

At x = 3  dy/dx = 3 * 9 - 4 * 3 = 15  The slope (gradient) of the curve

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A school dance committee has 14 volunteers. Each dance requires 3 volunteers at the door, 5 volunteers on the floor, and 6 float
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Given that a school dance committee has 14 volunteers and each dance requires 3 volunteers at the door, 5 volunteers on the floor and 6 on floaters.

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Combinations means finding the ways in which the things can be choosed to make a new thing or to do something else.

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Since 2 have not been assigned so left over volunteers are 14-2=12 volunteers.

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Learn more about combinations at brainly.com/question/11732255

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