Two or more angles whose sum is 180° are called supplementary angles. If a straight line is intersected by a line, then there are two angles form on each of the sides of the considered straight line. Those two-two angles are two pairs of supplementary angles. That means, that if supplementary angles are aligned adjacent to each other, their exterior sides will make a straight line.

Given the puck strikes the wall at an angle of 30°, it goes away at the same angle of 30°. Therefore, the measure of angle y can be found using the sum of the angle as a supplementary angle. Thus, we can write,

30° + ∠y + 30° = 180°

60° + ∠y = 180°

∠y = 180° - 60° = 120°

Hence, the measure of the ∠y is 120°.

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5 0

2 years ago

Someone who’s expert at algebra please helppp me I really need help solving all of these I don’t know how and it would mean a lo

saul85 [17]

Answer:

1.(5) (s) this indicates multiplication

2.(3) (m) (m)

3.(1/2) (a)

4.(g) (p)

5. (2) (x^2) (y^3)

6.(1/5) (x^2) (y)

7. 17 is the coefficient and 4 terms

8. 0 coefficient and 2 terms

9. 12 is the coefficient and 3 terms

10. 7 is the coefficient and 2 terms

11. 3 and 2 are coefficient and 1 terms

12. 15,11,-12, 20 are coefficient and 5 terms

6 0

3 years ago