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3 years ago

Select two ratios that are equivalent to 4:18

Mathematics

2 answers:

steposvetlana [31]3 years ago

4 0

Answer:

2:9

Step-by-step explanation

4:18 divided by 2 is the lowest it can go so 4 divided by 2 is 2

18 divided by 2 is 9 so,

2:9

lions [1.4K]3 years ago

3 0

Answer:

2:9

3:27

Step-by-step explanation:

both 4 and 18 are even so you can split both of those in half which will become 2 and 9 then you can just time 2 and 9 by 3 and get 6 and 27

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Temka [501]

Answer:

Therefore the rate at which water level is dropping is $\frac{11}{21}$ in per minute.

Step-by-step explanation:

Given that,

The diameter of cylindrical bucket = 12 in.

Depth is increasing at the rate of = 4.0 in per minutes.

i.e $\frac{dh_1}{dt}=4$

$h_1$ is depth of the bucket.

The volume of the bucket is V = $\pi r^2 h$

$=\pi \times 6^2\itimes h_1$

$\therefore V=36\pi h_1$

Differentiating with respect yo t,

$\frac{dV}{dt}=36\pi \frac{dh_1}{dt}$

Putting $\frac{dh_1}{dt}=4$

$\therefore\frac{dV}{dt}=36\pi\times 4$

The rate of volume change of the bucket = The rate of volume change of the aquarium .

Given that,The aquarium measures 24 in × 36 in × 18 in.

When the water pumped out from the aquarium, the depth of the aquarium only changed.

Consider h be height of the aquarium.

The volume of the aquarium is V= ( 24× 36 ×h)

V= 24× 36 ×h

Differentiating with respect to t

$\frac{dV}{dt}=24\times 36 \times \frac{dh}{dt}$

Putting $\frac{dV}{dt}=36\pi\times 4$

$36\pi\times 4= 24\times 36\times \frac{dh}{dt}$

$\Rightarrow \frac{dh}{dt}=\frac{36\pi \times 4}{24\times 36}$

$\Rightarrow \frac{dh}{dt}=\frac{11}{21}$

Therefore the rate at which water level is dropping is $\frac{11}{21}$ in per minute.

7 0

4 years ago

N a soccer game, Sally kicks the ball to a teammate who is on the other side of the field. The ball's height h (in feet above th

tresset_1 [31]

Answer:

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Step-by-step explanation:

The height of the ball after t seconds is given by the following equation:

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So we have to find h(0)

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At the time that it is kicked, the ball is on the ground, that is, it's height is 0 feet.

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abruzzese [7]

Answer:

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Step-by-step explanation:

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