Answer:
everthing is true about it
Step-by-step explanation:
I think the answer would be B :)
It would take just over 6 minutes assuming it takes him 2. 6 minutes to wax a single square inch somehow.
Once the rock hits the ground, we know that its height will be equal to 0m
because of this, we can replace H(x) with 0

now all we have to do is get x by itself
so..

then


now take the square root of each side

2.857 seconds (rounded to the third decimal)
C. it's simple dude. you just plug in each matrix value into the given function and solve. the matrix in C matches the given formula.