A ball is thrown off of a platform that is 5 feet above the ground. The path of the ball can be modeled by the function h(x) = -16x2 + 32x + 5, where h(x) is the height of the
ball (in feet) after x seconds.
What is the maximum height of the ball?
How long does it take for the ball to reach that maximum height?
seconds

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.

stethere all not eveanp-by-step explanation:

b

step-by-step explanation: