30 points!
2 answers:
Answer:
Step-by-step explanation:
Alright, lets get started.
There are 6 different stages of Tina's bike ride.
First: When she starts, her speed continuous increases means graph goes up.
Second : After seeing the stop sign, she slows down and speed reached to zero.
Third : She waits at stop sign, so, there is zero speed for some time.
Fourth : She again starts but at lower speed than previous speed.
Fifth : She makes a ride with steady speed.
Sixth : She finally slow down her speed and ends to zero.
So, the answer is second graph.
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Answer:
15 possible combinations
Step-by-step explanation:
Given
Required
Determine the possible number of combinations
The question emphasizes on "selection" which means "combination".
So; To answer this question, we apply the following combination formula:
In this case:
The formula becomes:
<em>Hence, there are 15 possible combinations</em>