Answer:
Step-by-step explanation:
<em>2( 2x + 6 ) + 2( x - 3 ) ≤ 66</em>
3x - 3 ≤ 33
x ≤ 10
x ∈ ( - ∞ , 10]
Answer:
4
Step-by-step explanation:
2(8)-3(4)
16-12
4
Answer:
Step-by-step explanation:
refer to solution in the picture
Move the decimal point to the right one place value.
1.7 x 10 = 17
17 is your answer
hope this helps
Answer:
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.
