The vertex form of equation of a parabola:
(h, k) - vertex
We have the vertex (-0.5, 2.3). Therefore h = -0.5 and k = 2.3.
Substitute:
We have the point (5, 2.75). Put the coordinstes of the point to the equation of parabola:
If we divide 15 by 42:
15 / 42 = 0.3571 or 35.71%
Since the level of significance is 0.05, an accuracy of 35.71%, based on the data, the results of the polygraph suggest that the polygraphs are not effective in distinguishing between truths and lies.
La respuesta es A) m=-2 b=5
Graph?
well
for
|a|>b solve
a>b and a<-b
|4w+1>11
solve
4w+1>11 and 4w+1<-11
minus 1 both sides
4w>10 and 4w<-12
divide both sides by 4
w>5/2 and w<-3
graph the points -3 and 2.5
shade outside
not including
2.
union means include all common to both
so
2. 1,2,3,4,6,8,9
3. 1,2,3,4,5,7,10
4. interseciton so only ones common to both, so 4
5. null set (empty)