<em>Reword these!!</em>
An elevator for a building must be greater than (or equal to) floor zero and the top floor. For a 20-floor apartment building with no basement, we can represent the elevator reaching all of the floors between the ground floor and the top floor, or 0≤x≤20. In words, we can say that the elevators must be able to reach greater than or equal to the ground floor AND less than or equal to the 20th floor.
A car burns more gasoline when it’s going either really slow or really fast. When we look at how the different ways driving a car can be more expensive, a car must be going below 40 miles an hour and higher than 70 miles an hour. The inequality to represent this is the speed is less than 40 miles per hour OR greater than 70 miles per hour. We can say, x<40 or x>70.
Answer:
125 cups can hold 49.5 liters of water.
Step-by-step explanation:
The volume of the cup will tell how much water is needed to fill each cup.
The volume of the cup can be determined by the formula
V= base area* height
V= πr²* h
V= 22/7 (3)² (14)
V= 396cm³
125 cups can hold 125 * 396 cm³= 49500cm³
But 1 cm³= 0.001 Liters
Therefore = 49500*0.001= 49.5 liters
125 cups can hold 49.5 liters of water.
Answer:
The new length of the tear is 2.3 * 10^-2 inch
Step-by-step explanation:
Here, we are concerned with knowing the new length of the tear.
Originally, the length of the tear is 2.3 * 10^-4 inch.
But this tear became 100 times longer. The new length of the tear will be the old length * 100
Mathematically, that would be 2.3 * 10^-4 inch * 100
= 2.3 * 10^-4 * 10^2
= 2.3 * 10^(-4 + 2)
= 2.3 * 10^-2 inch
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