Step-by-step explanation:
Determine the data range of the data set.
Decide the width of the class intervals.
Divide the range by the chosen width of the class interval to determine the number of intervals.
Answer:
3x+2/4>-20
3x+2>-80
3x>-80-2
3x>-82
x>-82/3
Also simplified to, x>-27 1/3
Answer:
30
Step-by-step explanation:
Answer:
There are no solutions. this equation seems wrong
Step-by-step explanation:
For this case we have the following equation:
h (t) = - 12t2 + 36t
When the object hits the ground we have:
- 12t2 + 36t = 0
We look for the roots of the polynomial:
t1 = 0
t2 = 3
Therefore, the time it takes the object to hit the ground is:
t = 3 s
Answer:
the time when the object hits the ground is:
t = 3 s
