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Anit [1.1K]
3 years ago
6

Please answer these two questions below

Mathematics
1 answer:
spayn [35]3 years ago
7 0
The fastest was molly and the faster than 15.02 and slower then 14.67 was Talisha
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The maximum flow of water in a pipe is modeled by the formula Q=Av, where A is the cross-sectional area of the pipe and V is the
Ira Lisetskai [31]
For this case we have the following equation:
 Q = Av
 Where the area is given by:
 A = pi * r ^ 2
 A = pi * (d / 2) ^ 2
 A = (pi / 4) * d ^ 2
 Substituting we have:
 Q = ((pi / 4) * d ^ 2) v
 From here, we clear the diameter:
 d = root ((4 / pi) * (Q / v))
 Substituting values we have:
 d = root ((4 / pi) * (50/600))
 d = 0.36 feet
 Answer:
 
The diameter of a pipe that allows a maximum flow of 50ft ^ 3 / min of water flowing at a velocity of 600ft / min is:
 
d = 0.36 feet
7 0
3 years ago
The perimeter of a rectangular painting is 270 cm.
Ainat [17]
The anwser is 53 cm each
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HELPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Hoochie [10]

Answer:

r²h(pie)+r³ over 3

Step-by-step explanation:

Call the radius r and the height of the cone h.  The formula for the volume of a cone is r^2*h*pi/3, and the formula for the volume of a sphere is 4r^3/3, so half of a sphere has volume 2r^3/3.  Adding these, our answer is: ^^

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2. Find the difference:<br> (3p2 – 2p + 3) – (p3 – 7p + 7) =<br> A<br> Find the difference:
faltersainse [42]

Answer:

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Step-by-step explanation:

6 0
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Find a polynomial f(x) of degree 5 that has the following zeros.
lara [203]

Answer:

Step-by-step explanation:

F(x) = (x - 2)(x - 9)(x + 4)²(x + 5)

4 0
2 years ago
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