Answer: t= 13.2 seconds
Step-by-step explanation:
The quadratic function for ball's height in terms of time t is given as
s(t)= -16t² +192t + 256
Now we want to find out the time at which the ball hits the ground.
When the ball hits the ground, the height of the ball will become zero so in the above equation we can put s(t)=0
0= -16t² +192t + 256
or 16t² -192t - 256 = 0
Solving this quadratic equation, we have
t= 13.211 and t= -1.211
Since time can't be negative so
t= 13.2 seconds
Answer:
a-3
Step-by-step explanation:
3(2a–1)−5a =
distribute
3*2a -3*1 -5a=
6a -3 -5a
combine like terms
a-3
The following inequality in slope-intercept form.
y≤-4x-15
Slope intercept form is y=mx+ c
- m= slope
- c= y intercept
- So, inequality 4x+y≤ – 15 is written as
- y≤-4x-15
- with , m= slope =-4
- c= y intercept= -15
what is a coordinate in geometry?
Coordinates are two numbers (Cartesian coordinates), or every so often a letter and a range of, that discover a particular point on a grid, called a coordinate aircraft. A coordinate aircraft has 4 quadrants and two axes: the x axis (horizontal) and y axis (vertical).
what is coordinate geometry instance?
In coordinate geometry, lines are parallel if their slopes (m) are equal. for instance: the line y = ½ x - 1 is parallel to the line y = ½ x + 1 due to the fact their slopes are both the identical.
To learn more about Slope visit , brainly.com/question/9682526
#SPJ9
2.5% Would be your answer.
Does this help any?
~ Korey :)