Answer:
4 sec
Step-by-step explanation:
let y = 0 which is the height when the rocket hits the ground
-3t^2 + 6t + 24 = 0
-3(t^2 - 2t - 8) = 0
-3(t - 4)(t + 2) = 0
t = 4 or t = -2
time cannot be negative, so t = 4 sec
Step-by-step explanation:

If n is rational, it means that

Therefore when we do n² we can write it as

Remember that the product of two integer numbers is also an integer, therefore we can guarantee that

Then we can confirm that n² is the quotient of two integers and the denominator is not zero, therefore, n² is always rational, it cannot be an irrational number
Answer:
<h2>8x6÷4÷2=6</h2>
Step-by-step explanation:
4.
Minimum: 20
First Quartile: 44
Median: 51
Third Quartile: 57
Maximum: 86
Ascending order : 20 41 44 44 49 53 55 57 80 86