Here we will check the percent changes in the values.
1. Candice buys a board that is 12 feet long. The store incorrectly measures and prices the board at 13.2 feet.
% change = %
2. Leo weighs 10 pounds of dog food at the pet store. The scale mistakenly lists the bag at 11.5 pounds.
% change = %
3. Josie’s odometer says she traveled 24 miles in her car. Her GPS, the more accurate source, says the distance is actually 20 miles.
% change = %
4. Lenny’s bug collection has a bug that is 16 centimeters long. Lenny fumbles with a ruler and incorrectly reports the bug to be 18 centimeters long.
% change = %
Answer:
t = 0.293 s and 14.52 s
Step-by-step explanation:
The heights of the ball in feet is given by the equation as follows :
Where t is the number of seconds after the ball was thrown.
We need to find is the ball 18 ft above the moon's surface.
Put S = 18 ft
It is a quadratic equation. Its solution is given by :
So, the ball is at first 0.293 s and then 14.52 s above the Moon's surface.