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i only need help on number 6

Mathematics
Tutor: None Selected Time limit: 0 Hours

Dec 3rd, 2014

Because the two triangles are different and the side opposite of the angle is larger than the side opposite of the angle 42 degrees, it means that the angle has to be larger than 42 degrees

So 4n - 18 > 42

Solve for n

4n > 60

n > 15

But the angle also cannot be larger than 180, so 

4n - 18 <= (less than or equal to) 180

solve for n 

4n <= 198

n <= 49.5 

So n is (15, 49.5]

Good luck:)


Dec 3rd, 2014

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