15. Calculate the experimental probability when flipping a coin if the coin is flipped 250 times and it lands on tails 120 times. Pr = 80%
Pr = 250 %
Pr = 50 %
Pr = 48%

First locate the turning point (vertex) of the graph. which is at the coordinates x=5 and y=9 or (5; 9).to determine whether it's a maximum or mininum value, you have to discern whether the vertex's y-value is the highest value or lowest value the graph can reach. since the vertex's y-value, 9 is the highest value the graph can reach, it will be a maximum.another basic way to determine whether the vertex's value is max or min is to see if the graph is smiling or sad. if it's smiling, the turning point/vertex would be a minimum, while a sad parabola would have a maximum y-value at the vertex.

The answer is d $21.65 i got that on a test in school before and got an a+ it should be d