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zubka84 [21]
2 years ago
14

The area of a circular swimming pool is approximately 18m What is the radius​

Mathematics
2 answers:
Ulleksa [173]2 years ago
8 0

Answer:

Hiiiiiiii ! :) so here's a step by step explanation okay, starting with the first step below. Hope it helps you ! :) :)

Step-by-step explanation:

<u>Begin with the volume of water:  </u>

V = πr²×h = π×(9m)²×2.5m = <u>636.17m³</u>  

<u>Weight of water = 636.17×10³kg  </u>

<u>G force on water = 9.8m/s²×636.17×10³kg = 6,234.49kN  </u>

<u>Water's center of gravity is 2.75m below edge of pool.  </u>

(2.5m/2 = 1.25m, 4m - 1.25m = 2.75m)  

Work = force × distance = <u>6,234.49kN × 2.75m = 17,144.85</u>

<u>H</u>ope i helped. <3

olga nikolaevna [1]2 years ago
7 0

Answer:

r≈2.39

Step-by-step explanation:

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kap26 [50]

Answer:

See below

Step-by-step explanation:

<u>Given functions</u>

  • f(x)=8^x
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As we see g(x) = f(x + 5) + 1, which means <u>horizontal translation 5 units left</u> and <u>vertical translation 1 unit up</u>.

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7 0
2 years ago
36 in the ratio of 2:3:4
Viefleur [7K]
The ratio of three numbers are 2:3:4.

Let the rational between the three numbers be x, hence the three numbers be 2x, 3x,and 4x.


If their average is 36, what are the numbers

We know the average = sum of the numbers / no. Of numbers.

(2x+3x+4x) /3=36

9x/ 3= 36

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X= 36/ 3

X= 12

The rational is 12

Answer the three number are 24, 36, and 48.



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5 0
2 years ago
remy said the table shows a proportional relationship because each distanc went up by 6ftg. Collin said that it was not a propor
sdas [7]

Answer:

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Step-by-step explanation:

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2 years ago
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likoan [24]

Answer:

750

Step-by-step explanation:

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3 years ago
A particle moves along the curve y = 5x^2 – 1 in such a way that the y value is decreasing at the rate of 2 units per second. At
Shtirlitz [24]

Answer:

The correct option is;

Increasing one fifth unit/sec

Step-by-step explanation:

The equation that gives the curve of the particle of the particle is y = 5·x² - 1

The rate of decrease of the y value dy/dt = 2 units per second

We have;

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dt/dx = (dy/dx)/(dy/dt)

dx/dt = dy/dt/(dy/dx) = 2 unit/sec/(10·x)

When x = 1

dx/dt = 2/(10·x) = 2 unit/sec/(10 × 1) = 1/5 unit/sec

dx/dt = 1/5 unit/sec

Therefore, x is increasing one fifth unit/sec.

8 0
2 years ago
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