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24.02.2021 •
Mathematics
One interior angle of a convex polygon (a convex polygon is a polygon where all angles
are less than 180 degrees) is 120 degrees. All the other angles are 130 degrees. How many sides
does the polygon have?
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Ответ:
(-2,-3)
Step-by-step explanation:
y = 3x + 3
y = x − 1
Equate both the y's to get an equation in terms of x only. Making x the subject, solve for x. Substitute the value of x in any of the given equations to find y.
3x + 3 = x - 1
2x = -4
x = -2
y = -2 - 1 = -3
Solution is: (-2,-3)