What is the solution of the system of equations? -5x+2y=22 10x + 2y = -8 20-5x + 2y = 22) - -10x + 4y = 44 + 10x + 2y = -8 10x + 2y = -8 10x + 2(6) = -8 бу = 36 10x + 12 = -8 10x = -20 y = 6 x = -2 The solution is (-2,6). Show a different way to use elimination to solve the system in the Example. ​

Step-by-step explanation:

We are given the position function and need to find the value of t when h<17.

Create an inequality that represents this situation:

The "less than" sign makes this very specifically a conjunction problem as opposed to a disjunction. That's important to the solution. But we'll get there.

The simplest way to solve this is to subtract 81 from both sides:

then divide both sides by -16:

Notice now that the sign is facing the other way since we had to divide by a negative number. Now it's a disjunction. The solution set to this inequality is that t>2 or t<-2. First and foremost, time will never be negative, so we can disregard the -2. Even if that was t<2, the more time that goes by, the greater the time interval is, not the lesser. It's the "<" that doesn't make sense, not only the -2. The solution to this inequality is

t > 2 sec. That means that after 2 seconds, the height of the ball is less than 17 feet.