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olga nikolaevna [1]
3 years ago
10

Select the correct answer. Which equation represents a function?

Mathematics
1 answer:
inn [45]3 years ago
7 0

Answer:

C

Step-by-step explanation:

'x=' create vertical lines which are not functions whereas

'y=' create horizontal lines which are functions

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3 years ago
Find all solutions of the equation in the interval (0,2π) <br> cot theta +root 3 = 0
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Answer:

θ = 5π/6 rad and 11π/6 rad

Step-by-step explanation:

Given the expression cotθ+√3=0

Subtract √3 from both sides

cotθ+√3-√3=0-√3

cotθ = -√3

Since cotθ = 1/tanθ

1/tanθ = -√3

Reciprocate both sides:

tanθ = -1/√3

θ = tan^-1(-1/√3)

θ = -30°

Since the angle is negative, and tanθ is negative in the second and fourth quadrant.

In the second quadrant;

θ = 180-30

θ = 150°

Since 180° = πrad

150° = 150π/180

150° = 5π/6 rad

In the fourth quadrant;

θ = 360-30

θ = 330°

Since 180° = πrad

330° = 330π/180

330° = 11π/6 rad

Hence the solutions are 5π/6 rad and 11π/6 rad.

7 0
3 years ago
How do i factor 54a + 24b
levacccp [35]
Well, to factor out we have to find the gratest common factor of 54 and 24 which is 6.  then divide both numbers by that number

54/6=9   24/6=4

6(9a+4b) is your final answer
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3 years ago
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On a bike trip, you traveled 21 miles on
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She traveled 13 23/56 miles on the third day.

Step-by-step explanation:

HOPE THIS HELPED ;3

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3 years ago
HELP QUICK LIKE RIGHT NOW!please
pogonyaev

Answer:

1/2 = 1/2

Step-by-step explanation:

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3 years ago
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