Answer: 5.22 seconds
<u>Step-by-step explanation:</u>
t represents time and y represents the height.
Since we want to know when the ball hits the ground, find t when y = 0
Ball 1 starts at a height of 109 --> h = 109
0 = -16t² + 109
16t² = 109
t = 5.22
The parallel line would be y = -1. The perpendicular line would be x = 3.
In order to find these, we must first solve the equation for y.
y - 2 = 0
y = 2.
Now that we have this, we know that the graph is that of a horizontal line. horizontal lines have 0 slope. To find the parallel line, we need to make another horizontal line. All lines that are horizontal are written in y = a number form. Since the y in the ordered pair is -1, we know the parallel line is y = -1.
As for the perpendicular line, we know that they are the opposite. Since we have y = a number for parallel, we know the opposite is x = a number for perpendicular. Since the x value in the ordered pair is 3, we know the line is x = 3.
This is what the graph would look like. Hope this helps:)
2 pints = 1 quart
8 pints = 1 gallon
4 quarts = 1 gallon
Sarah needs 2 gallons. Sarah has 2 quarts, which is half a gallon. She needs enough pints for 1 1/2 gallons. There are 8 pints in 1 gallon, and if you divide 8 by 4, it is 4, so 8 + 4 = 12.
Sarah will need 12 pint-sized containers.