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Svetlanka [38]
3 years ago
9

A frustum is formed when a plane parallel to a cone’s base cuts off the upper portion as shown.

Mathematics
2 answers:
aliya0001 [1]3 years ago
4 0
The volume of a cone is
V = (1/3) π r² h
where r =  radius of the base
h =  the height.

The volume of the frustum is
(1/3)π(7.5²)(11+8) - (1/3)π(3.5²)(8)
=(1/3)π(7.5²)(19) - (1/3)π(3.5²)(8)

The 3rd choice is the correct answer.

Answer:
\frac{1}{ 3}  \pi (7.5^{2})(19) -  \frac{1}{3}  \pi (3.5^{2})(8)


inn [45]3 years ago
3 0
Option c (choice 3) is the correct choice 
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8. How much energy does a 12 V battery in your car use to move 2.5 C through the electrical
I am Lyosha [343]

The energy required is 30 watts second.

In order to accomplish work and to produce heat and light, energy must be transferred to a body or to a physical system. Energy is the quantitative attribute that does this. Energy is a preserved resource; according to the rule of conservation of energy, energy can only be transformed from one form to another and cannot be created or eliminated.

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Hence, the energy needed by the 12 V battery to move 2.5 C through the electrical circuit is 30 watts second.

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6 0
2 years ago
What is y=x -4; (5,1)
Ilya [14]
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5 0
3 years ago
Help Anyone please? >>>>>>>>>>>>>>>>>>>>>>>>>>>
denis-greek [22]

Answer:

the answer is c

Step-by-step explanation:

y = 5x

as it says x + y = 10

so one number which is represented as x is times 5 as the other which brimg to our answer y =5x

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