Answer:
Step-by-step explanation:
y÷2+x
2÷2+1
1+1
2
The probabilities of knocking down zero, one, and two pins are
and
, respectively. The total probability of knocking down at most two is thus
, or
.
Answer:
a=2.4
Step-by-step explanation:
The X-intercepts: (1,0),(-7,0)
Axis of symmetry: x= - 3
The vertex: (-3, -8)
The Y-intercept: (0, -7/2)
Concave up or down: concave up
Sketch: a poorly drawn picture on the bottom.
I hope that helps.