Answer:
I think its 2 x 5/8
Step-by-step explanation:
tell me if its right!
Answer:
Function 
Step-by-step explanation:
) Domain is defined as the set of possible values of x where function is defined.
For domain,
So,
The value of x is define as
The domain of the function is all real numbers except
The range is defined as all the y values for every x.
So, The range of the function is all real numbers.
2) The general form of the cot function is
Where, Period is
On comparing, B=3
So, The period of the given function is
3) Vertical asymptote is defined as the line which approaches to infinity but never touches the line.
The vertical asymptote is at where function is not defined.
The two vertical asymptote is
Put n=0,
Put n=1,
So, The two vertical asymptote are
U r going to subtract 3 from each side of the equation....leaving you with :
x^2 + 2x = -3
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Irina:
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Irina takes 7 hours to paint the room.
In 1 hour, Irina can paint 1/7 of the room.
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Paulo:
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Paulo takes 6 hours to paint the room.
In 1 hour, Paulo can paint 1/6 of the room.
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Both paint together:
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In one hour they can paint (1/7 + 1/6) of the room.
1/7 + 1/6 = 13/42
So, it takes 13/42 of the room takes 1 hour.
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Find the number of hours
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13/42 of the room = 1 hour
Whole room = 1 ÷ 13/42
Whole room = 1 x 42/13
Whole room = 3.23 hours
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Answer: They need 3.23 hours to paint the room.
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