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stepladder [879]
3 years ago
5

Find the diameter of a cylindrical construction pipe is 4 ft. If the pipe is 18 ft. Long, what is its volume? Use the value 3.14

and round your answer to the nearest whole number
Mathematics
1 answer:
Dovator [93]3 years ago
8 0

Answer:

395 .64 ft2

Step-by-step explanation:

hmm, let's see :

<em>Pi </em>= 3.14 r = 3 ft h = 14 ft

<em>Volume</em> = 3.14 * (3)2 ft *14 ft= 395 .64 ft2

— hope this helped :)! (sorry if there is any mistake !!)

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The area of a sector with a central angle of 30' is 150'. Determine the approximate length of the diameter.
ioda

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A square with sides of 3 squareroot 2 is inscribed in a circle. what is the area of one of the sectors formed by the radii to th
mrs_skeptik [129]
Drawing this square and then drawing in the four radii from the center of the cirble to each of the vertices of the square results in the construction of four triangular areas whose hypotenuse is 3 sqrt(2).  Draw this to verify this statement.  Note that the height of each such triangular area is (3 sqrt(2))/2.

So now we have the base and height of one of the triangular sections.

The area of a triangle is A = (1/2) (base) (height).  Subst. the values discussed above,   A = (1/2) (3 sqrt(2) ) (3/2) sqrt(2).  Show that this boils down to A = 9/2.

You could also use the fact that the area of a square is (length of one side)^2, and then take (1/4) of this area to obtain the area of ONE triangular section.   Doing the problem this way, we get (1/4) (3 sqrt(2) )^2.  Thus, 
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4 0
3 years ago
In the formula that gives the circumference of a circle, which quantity is multiplied by 21 ?
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Step-by-step explanation:

5 0
3 years ago
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7 0
3 years ago
Read 2 more answers
un automóvil recorre 90 km con 2 galones de gasolina cuantos kilómetros recorre con 11 galones de gasolina y cuantos galones de
anygoal [31]

Answer:

Recorrera 495 km con 11 galones de gasolina

Y necesitara 14.44 galones para recorrer 650 km

Step-by-step explanation:

k          g                                                                  k             g

90         2                                                                 90           2

x            11                                                                650         x

=(11 x 90)/2                                                              =(650x2)/90

=990/2                                                                    =1300/90

=495 km                                                                 =14.44

6 0
3 years ago
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