X=15 Alt. Ext. Angles are congruent so just plug 84 into the equation 5x + 9. 84 being x.
The intersection of A and B, denoted by A ∩ B, is the set of all things that are members of both A and B.
Answer:
3x+8=20
Step-by-step explanation:
take 8 and minus 8 from both sides then divide 12 by 3x
9: the answer is 4 to 13
10: the answer is 6 to 13
Answer:
(3, -2)
Step-by-step explanation:
To find the vertex, put the equation into vertex form by completing the square
2(x^2 - 6x) + 16 [pulling out the 2]
2(x^2 - 6x + 9) - 18 + 16 [completing the square, you subtracted 2*9 = 18 so you also add 18]
2(x - 3)^2 - 2 [simplify the equation]
vertex is (3, -2)