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2 years ago

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A conical tank (with vertex down) is 12 feet across the top and 18 feet deep. If water is flowing into the tank at a rate of 18

cubic feet per minute, find the rate of change of the ) depth of the water when the water is 10 feet deep. = ^2ℎ (

1 answer:

Rufina [12.5K]2 years ago

7 0

Answer:

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Step-by-step explanation:

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Yo someone deleted my other question, so i will ask a question that 'needs' to be answered. How is your day going. And what is 2

Simora [160]

Answer:

4

Step-by-step explanation:

terrible, but it could be worse

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2 years ago

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Solve p=10a+3b for a

pav-90 [236]

<span>p=10a+3b
10a = 3b - p
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Y-6.31=7.02 <br><br>what is y?

Volgvan

Answer:

$\Large \boxed{y=13.33}$

Step-by-step explanation:

$y-6.31=7.02$

Add 6.31 to both sides

$y-6.31+6.31=7.02+6.31$

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2 years ago

The width w of a rectangular swimming pool is 7x2. The area A of the pool is 7x3 – 42x2. What is an expression for the length of

Sloan [31]

A = length · width

7x3 - 42x2 = L(7x2) Factor left side
7x2(x - 6) = L(7x2) Divide both sides by 7x2
x - 6 = L

The length of the pool is x - 6.

Note: Length is always longer than width. Although the algebra is correct, it is doubtful that x - 6 is greater than 7x2.

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2 years ago

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The row-echelon form of the augmented matrix of a system of equations is given. Find the solution of the system.

alexgriva [62]

Answer:

D

Step-by-step explanation:

Given matrix allows you to write that

$\left\{\begin{array}{r}x\ \ +\ \ 5z=1\\y-3z=4\end{array}\right..$

Let $z=t.$ From the last equation,

$y=4+3z\Rightarrow y=3t+4.$

From the first equation,

$x+5z=1\Rightarrow x=1-5t.$

Then the solution of the system has form

$\left\{\begin{array}{l}x=-5t+1\\y=3t+4\\z=t\end{array}\right.,$

where t is any real number.

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2 years ago