2 years ago

I need help with this

Mathematics

1 answer:

butalik [34]2 years ago

8 0

i dont know my friend so try asking someone better than cause i have no brain for this type of math

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Emmanuel carves a cone-shaped hollow out of a solid clay cylinder. What is the approximate volume of the solid portion of the cy

bixtya [17]

Answer:

$3.14r^2(h-\frac{1}{3}h_1)$

Step-by-step explanation:

Let h be the cylinders height and r the radius.

-The volume of a cylinder is calculated as:

$V=\pi r^2h$

-Since the cone is within the cylinder, it has the same radius as the cylinder.

-Let $h_1$ be the height of the cone.

-The area of a cone is calculated as;

$V=\pi r^2 \frac{h}{3}\\\\=\frac{1}{3}\pi r^2h_1$

The volume of the solid section of the cylinder is calculated by subtracting the cone's volume from the cylinders:

$V=V_{cy}-V_{co}\\\\=\pi r^2h-\frac{1}{3}\pi r^2 h_1, \pi=3.14\\\\=3.14r^2(h-\frac{1}{3}h_1)$

Hence, the approximate area of the solid portion is $3.14r^2(h-\frac{1}{3}h_1)$

5 0

3 years ago

Please help me ASAP!Please

aleksandrvk [35]

Answer:

Option three

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Ow many solutions does the system of equations –6a + b = 14 and –12a + 2b = 28 have?

Dmitry [639]

Indefinite amount of solutions.

3 0

3 years ago

PLEASE ANSWER QUICK<br><br> THANK YOU

Lesechka [4]

Answer:

D)-3x+5

Step-by-step explanation:

Hope this helps ;)

4 0

3 years ago

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1. The population of an endangered species of bird is decreasing 15 percent each year. If there were originally 1,400 birds rema

balu736 [363]

Answer:

528 birds

Step-by-step explanation:

100%-15%= 85% = .85

1400 (.85)^6

= 528

7 0

3 years ago

I need help with this​

I need help with this