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3 years ago

Someone plz help me out

Mathematics

1 answer:

Musya8 [376]3 years ago

8 0

Answer:

The correct answer is B) - 1/6

Step-by-step explanation:

To find the answer, simply subtract two consecutive values of f(x). Any 2 will give you the same answer.

49/6 - 25/3

49/6 - 50/6

-1/6

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A circular swimming pool has a diameter of 40 meters. The depth of the pool is constant along west-east lines and increases line

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Answer:

Volume is $2000\pi\ m^{3}$

Solution:

As per the question:

Diameter, d = 40 m

Radius, r = 20 m

Now,

From north to south, we consider this vertical distance as 'y' and height, h varies linearly as a function of y:

iff

h(y) = cy + d

Then

when y = 1 m

h(- 20) = 1 m

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when y = 9 m

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Adding eqn (1) and (2)

d = 5 m

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$c = \frac{1}{5}$

Therefore,

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Now, the Volume of the pool is given by:

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where

A = $r\theta$

$A = rdr\ d\theta$

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$V = \int_{0}^{2\pi} (\frac{1}{15}20^{3}sin\theta + 1000) d\theta$

$V = [- 533.33cos\theta + 1000\theta]_{0}^{2\pi}$

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Answer:

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