3 : 3,6,9,12,15,18,21,24,27,30
4 : 4,8,12,16,20,24,28,32,36
7: 7,14,21,28,35,42,49,56,63
9: 9,18,27,36,45,54,63,72,81
add the 2 probabilities together:
0.297 + 0.423 = 0.72
Answer is C
Answer:
6,-3
Step-by-step explanation:
y = a ( x - h)^2 + v
a is positive when the parabola opens up and negative when it opens down.