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slava [35]
3 years ago
5

Pls help me !!! Find the volume of the cylinder. Either enter an exact answer in terms of 7 or use 3.14 for T.

Mathematics
1 answer:
jeka57 [31]3 years ago
7 0
Volume of cylinder = pi r^2 h
= 3.14 x 3^2 x 2
= 3.14 x 9 x 2
= 28.26 x 2
= 56.52 units^3
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There are 20 machines in a factory. 7 of the machines are defective.
adelina 88 [10]

Answer:

0.1225

Step-by-step explanation:

Given

Number of Machines = 20

Defective Machines = 7

Required

Probability that two selected (with replacement) are defective.

The first step is to define an event that a machine will be defective.

Let M represent the selected machine sis defective.

P(M) = 7/20

Provided that the two selected machines are replaced;

The probability is calculated as thus

P(Both) = P(First Defect) * P(Second Defect)

From tge question, we understand that each selection is replaced before another selection is made.

This means that the probability of first selection and the probability of second selection are independent.

And as such;

P(First Defect) = P (Second Defect) = P(M) = 7/20

So;

P(Both) = P(First Defect) * P(Second Defect)

PBoth) = 7/20 * 7/20

P(Both) = 49/400

P(Both) = 0.1225

Hence, the probability that both choices will be defective machines is 0.1225

4 0
3 years ago
Which statement correctly describes the relationship between the graph of f(x)g(x) and g(x)=f(x−7)?
Lelu [443]
G(x) would have to be -->7 units.
The relationship between f(x) and s(x) where s(x)=af(x-b)+z is that g(x) is f(x) stretched by the reciprocal of a, b is the liar (all x values go up if b goes down and visa versa), and it moves up z units. 
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3 years ago
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Answer:

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Step-by-step explanation:

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4 0
3 years ago
Triangle IHJ is similar to triangle RST.<br> What is the length of side _<br> RT
solmaris [256]
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3 0
2 years ago
Solve the equation 13-2x=-7
patriot [66]
Subtract 13 from both sides.

-13
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-2x = -20

Divide by 2 on both sides.
Remember: Negative divided by a negative makes a positive.

-2/-2 = 1
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Your answer:
x = 10

8 0
3 years ago
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