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2 years ago

Please answer this correctly

Mathematics

1 answer:

atroni [7]2 years ago

7 0

Answer:

1/7

Step-by-step explanation:

The probability of picking an even number is 3/7.

Without putting the first card back, the probability of picking an even number again is 2/6.

$3/7 \times 2/6$

$= 6/42$

$=1/7$

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Answer:

The power for the volume of the cube is '3'.

Exponent form of the volume is

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Step-by-step explanation:

We are given,

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As we know,

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Thus, we get,

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Thus, we have,

The power for the volume of the cube is '3'.

Exponent form of the volume is

Volume of the cube is inch³.

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2 years ago

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A filter filled with liquid is in the shape of a vertex-down cone with a height of 9 inches and a diameter of 6 inches at its op

Alina [70]

Answer: Level of the liquid dropping at 28.28 inch/second when the liquid is 2 inches deep.

Step-by-step explanation:

Since we have given that

Height = 9 inches

Diameter = 6 inches

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Volume of cone is given by

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By differentiating with respect to time t, we get that

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Now, the liquid drips out the bottom of the filter at the constant rate of 4 cubic inches per second, ie $\dfrac{dv}{dt}=-4\ in^3$

and h = 2 inches deep.

$-4=\dfrac{1}{9}\times \pi\times (2)^2\dfrac{dh}{dt}\\\\-9\pi =\dfrac{dh}{dt}\\\\-28.28=\dfrac{dh}{dt}$

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2 years ago

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3 years ago

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2 years ago

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frutty [35]

Answer:

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Step-by-step explanation:

Let $a$ be the number of bags with 8 onions and let $b$ be the number of bags with 3 onions. We have the following system of equations:

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2 years ago