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pishuonlain [190]
4 years ago
12

You have a can that is in the shape of a cylinder. It has a volume of about 1,726 cubic centimeters. The height of the can is 22

centimeter. What is the approximate length of the radius? Use 3.14 for pi
Mathematics
1 answer:
Ira Lisetskai [31]4 years ago
8 0

Answer:

5 cm

Step-by-step explanation:

The formula for the volume of a cylinder is

V = πr²h

Data:

V = 1726 cm³

h = 22 cm

Calculation:

1726 = 3.14 × r² × 22

1726 = 69.08r²

Divide each side by 69.08

24.99 = r²

Take the square root of each side

r = 4.999 cm ≈ 5 cm

The approximate radius of the cylinder is 5 cm.

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DerKrebs [107]
This problem cannot be solved unless we are given figure NPQR is a rhombus.
In that case, then all sides are equal, meaning 
5x+16=9x-32
Solve for x
9x-5x=16+32
4x=48
x=12

Each side (including PQ) then equals 5x+16=5*12+16=76
8 0
3 years ago
The owner of a cattle ranch would like to fence in a rectangular area of 3000000 m^2 and then divide it in half with a fence dow
Reika [66]
If you notice the picture below, the amount of fencing, or perimeter, that will be used will be 3w + 2l

now    \bf \begin{cases}
A=l\cdot w\\\\\
A=3000000\\
----------\\
3000000=l\cdot w\\\\
\frac{3000000}{w}=l
\end{cases}\qquad thus
\\\\\\
P=3w+2l\implies P=3w+2\left( \cfrac{3000000}{w} \right)\implies P=3w+\cfrac{6000000}{w}
\\\\\\
P=3w+6000000w^{-1}\\\\
-----------------------------\\\\
now\qquad \cfrac{dP}{dw}=3-\cfrac{6000000}{w^2}\implies \cfrac{dP}{dw}=\cfrac{3w^2-6000000}{w^2}
\\\\\\
\textit{so the critical points are at }
\begin{cases}
0=w^2\\\\
0=\frac{3w^2-6000000}{w^2}
\end{cases}

solve for "w", to see what critical points you get, and then run a first-derivative test on them, for the minimum

notice the 0=w^2\implies 0=w   so.  you can pretty much skip that one, though is a valid critical point, the width can't clearly be 0

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8 0
3 years ago
A=9, b = 10, c =11.4, 2C = ___
natima [27]

Answer:

22.8

Step-by-step explanation:

A, and B are distractions. multippe C (11.4) by 2, you'll get 2C (22.8)

6 0
3 years ago
Read 2 more answers
50 POINTS SOLVE !! ::
satela [25.4K]

Answer:

<h2>k = 31/9</h2><h2>b = 12</h2>

Step-by-step explanation:

<u>k - 4</u> = 3

   9

k/9  = 3(9) + 4

k = 31/9

k = 31/9

<u>8 + b </u> = -5

  -4

8 + b = -5 (-4)

8 +  b = 20

b = 20 - 8

b = 12

4 0
3 years ago
How many kilograms are equivalent to 5 pounds
Mashutka [201]

Answer:2.26796

Step-by-step explanation:

6 0
3 years ago
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