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tankabanditka [31]
3 years ago
15

if a cone and a cylinder have the same radius and the perpendicular height of the cone is twice that of a cylinder find the rati

o of the volume​
Mathematics
2 answers:
kykrilka [37]3 years ago
7 0

Answer:

2/3

Step-by-step explanation:

h = height of the cone

Vcone = πr²h/3

H = h/2 = height of the cylinder

Vcylinder = πr²H = πr²h/2

Vcone/Vcylinder = (πr²h/3)/(πr²h/2)

= πr²h/3 x 2/πr²h

= 2/3

laila [671]3 years ago
7 0

Answer:

2/3

Step-by-step explanation:

h = height of the cone

Vcone = πr²h/3

H = h/2 = height of the cylinder

Vcylinder = πr²H = πr²h/2

Vcone/Vcylinder = (πr²h/3)/(πr²h/2)

= πr²h/3 x 2/πr²h

= 2/3

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If 32x+1 -3x+5, what is the value of x?
kozerog [31]

Answer:

x=-0.21...

Step-by-step explanation:

Make the expression equal 0

32x+1-3x+5=0

Combine the x terms

29x+1+5=0

Combine the constants

29x+6=0

Isolate the x term

29x=-6

Isolate the variable

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(I rounded to the nearest 100th)

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3 years ago
3x - 12y = 6<br> x - 4y = 2<br> solve by elimination
OverLord2011 [107]

Answer:

the problem has an infinite number of solutions

Explanation:

3x - 12y = 6

x - 4y = 2

make the coefficient of x same by multiplying the entire following by 3

⇒ ( x - 4y = 2 ) * 3

⇒ 3x - 12y = 6 __ equation 2

3x - 12y = 6 __ equation 1

solving using elimination method:

3x - 12y = 6

3x - 12y = 6

===========

0

5 0
2 years ago
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DochEvi [55]
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andre [41]
Y varies inversely with x
means that y=k/x 
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we have 80=k/0.7
k=0.7x80=56
so the equation is 
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Firlakuza [10]

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