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.
Step-by-step explanation:
12 is rounded to 10
22 is rounded to 20
20×10= 200
Answer:
111,739 square feet
Step-by-step explanation:
Two adjacent sides of the park say x and y are,
x=533feet
y=525feet
A=53º
area=1/2*b*c*sin(A)
111739 feet^2
The length of the enlarged copy in feet is 2.7 feet.
<u>Step-by-step explanation</u>:
- The painting is 4 inches wide and 2 feet long.
- convert inches into feet (1 inch=0.083 foot). Therefore, 4 inches=0.3 feet
- The enlarged copy is 1 foot wide and 'x' feet long.
The width is enlarged from 0.3 to 1 which is increased by 0.7 feet.
∴ The length should also be increased by 0.7 feet = 2+0.7 = 2.7 feet
Answer:
1st answer is 108
Step-by-step explanation:
108 is equivalent to 54 because 10 x 4 = 8 x 5 = 40. 1512 is equivalent to 54 because 15 x 4 = 12 x 5 = 60. 2016 is equivalent to 54 because 20 x 4 = 16 x 5 = 80
