Answer:
No solution
Step-by-step explanation:
Given:
and 
Solve both inequality separately.
Subtraction property of inequality




and
Addition property of inequality



Hence, the solution of the compound inequality intersection of both solutions.
Please find attachment for number line solution.
No solution
Answer:
Hey! Is this the full question?
Step-by-step explanation:
It will take the factory 45 hours to make 30 lawnmowers.
All you have to do here is find the lcm.
the time it will take them too complete the lap at the same time is 12 minutes.
Since x is the number of seconds it took the rock to hit the water, x is the value that we are looking for. When the rock hits the water, it's height is 0, therefore, f(x) = 0. So, we can set the expression on the right equal to 0, and solve for 0. Let's do just that:

We can divide by -16, nothing will happen because 0 divided by anything is 0:

To factor any trinomial in standard form (given below), we must find two numbers that add to "b" and multiply to "c":

So, for this specific question, let's find two numbers that add to -8 and multiply to 9. These are clearly 9 and -1. We can write it in this way now:

Both answers would be valid, but there can't be negative time, so your answer is
"It takes 9 seconds for the rock to reach the water."