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2 years ago

A cylinder has a surface area of 234π meters with a radius of 9 m. What is the volume of the cylinder? Leave your answer as π

Mathematics

1 answer:

sasho [114]2 years ago

7 0

Answer:

Step-by-step explanation:

surface area of cylinder=2 $\pi$ rh

or,234 $\pi$ =2*22/7*9*h

or,234*22/7=396/7*h

or,5148/7=396/7*h

or,36036=2772h

or,36036/2772=h

h=13

now,

volume= $\pi$ r^2h

=22/7*(9)^2*13

=3309.4285

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Answer:

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3 years ago

Two cyclists , A and B , are going on a bike ride and are meeting at an orchard . They left home at the same time . Functions A

vova2212 [387]

Answer:

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Step-by-step explanation:

Given

$A(x) =48.5 -21x$

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Required:

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To do this, we simply calculate the y intercept.

This represents the total distance traveled to get to the Orchard

To calculate y intercept, we set $x = 0$

So:

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2 years ago

CON PROCESOS POR FAVOR

labwork [276]

Answer:

$\dfrac{149}{40}$

$\dfrac{38}{15}$

Step-by-step explanation:

$(\dfrac{7}{8} + \dfrac{4}{5}) - (\dfrac{9}{20} + \dfrac{-5}{2}) =$

$= (\dfrac{7}{8} \times \dfrac{5}{5} + \dfrac{4}{5} \times \dfrac{8}{8}) - (\dfrac{9}{20} + \dfrac{-5}{2} \times \dfrac{10}{10})$

$= (\dfrac{35}{40} + \dfrac{32}{40}) - (\dfrac{9}{20} + \dfrac{-50}{20})$

$= \dfrac{67}{40} - (-\dfrac{41}{20})$

$= \dfrac{67}{40} + \dfrac{41}{20} \times \dfrac{2}{2}$

$= \dfrac{67}{40} + \dfrac{82}{40}$

$= \dfrac{149}{40}$

$(-\dfrac{6}{4} + \dfrac{3}{2}) + (\dfrac{6}{5} + \dfrac{4}{3}) =$

$= (-\dfrac{3}{2} + \dfrac{3}{2})+ (\dfrac{6}{5} \times \dfrac{3}{3} + \dfrac{4}{3} \times \dfrac{5}{5})$

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$= \dfrac{38}{15}$

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1 year ago

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Delvig [45]

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3 years ago