B. The upper quartile is the median of the upper half of the data.
if I am wrong please let me know.
Answer:
-32 - 8 = -40 ft
Step-by-step explanation:
Looking at the graph, we can say that:
- It opens downward and has a maximum of 0.
- The axis of symmetry passes through the vertex (the maximum value in this case). So, the x-coordinate of the vertex is 4, and the axis of symmetry is:

- We conclude that the coordinates of the vertex are:

- The x-intercepts are defined as those points whose y-coordinate is 0. Similarly, the y-intercepts are those points of x-coordinate equal to 0. Looking at the graph, the vertex itself is the x-intercept, and y = -8 is the y-intercept.
Answer:
24 minutes
Step-by-step explanation:
you convert 80% to 0.80
you then multiply 30 x 0.80 = 24