5. The graph shows the distance in miles traveled by sound waves in a given number of seconds.
do
.
18
1
0.78
0.0
.
10
Which statements about sound waves are true? Select all that apply.
A. The same time it takes for sound to travel is NOT proportional to the distance
traveled by the sound waves.
B. It takes approximately 5 seconds for sound to travel 1 mile.
C. Sound travels at a speed of approximately 0.2 miles per second.
D. The distance traveled by sound waves increases at a constant rate of 0.25 miles for
each 1-second increase in time.
E. In 2.5 seconds, sound can reach a point of about 0.5 miles away.

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: