8.11
an expression is shown below:
f(x)=-16x^2+60x+16

part a: what are the x intercepts of the graph of f(x)? show your work. (2points)

part b: is the vertex of the graph of f(x) going to be a maximum of a minimum? what are the coordinates of the vertex? justifiy your answers and show your work.(3 points)

part c: what are the steps you would use to graph f(x)? justifiy that you can use the answers obtained in part a and part b to draw the graph (5 points)

i dont know i just need points

6.5

step-by-step explanation:

you said it was in the question

~courtney

y=x+9

?

step-by-step explanation:

1. sometimes

2.   never

3   .08c = 7.50+.05c   250 pages

step-by-step explanation:

1.   sometimes

the theoretical probability of rolling a 1 is 1/6.   perhaps you got really lucky and never rolled a 1   in those 60 times.   your experimental probability is 0.   or perhaps you rolled a 1   20 times.   your experimental probability is 20/60 is 1/3.     it really just depends on how you rolled in that experiment.

2.   never

the probability of the event occurring is 1.   that is being 100 % sure it will happen.   that is the maximum amount of confidence we have.

3.   no customer card cost:   .08 times number of pages

customer card cost:   7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03

c =250  

the cost is the same at 250 pages