Mathematics, 10.09.2021 04:30 alott1121
PLEASE HELP QUESTIONS IN THE PICTURE AS WELL! LOOK AT PICTURE BELOW TO SEE EVERYTHING The Students' Conjectures: Two students, Ernest and Denise, are training for a swim half-marathon in 10 weeks, and they disagree about their training schedule. If they follow Ernest's suggested training schedule, will they be ready to swim 5 km in time for the half-marathon?
1Complete the table to summarize each student's suggested training schedule. (2 points: 1 point for each row of the chart)
Classmate Conjecture
Ernest
Denise
2Do the distances they swim every week make an arithmetic sequence? Why? (1 point)
Analyzing the Data:
3Fill out the schedules for the first four weeks of training. (2 points: 1 point for each person)
Ernest's Schedule
Denise's Schedule
Week Kilometers to swim daily Week Kilometers to swim daily
1 1
2 2
3 3
4 4
4Write the recursive formula for each sequence: an = an – 1 + d.
(4 points: 2 point for each formula)
Student
d
Recursive formula
Ernest
Denise
5Find the explicit formula for each arithmetic sequence: an = a1 + (n – 1) • d.
(4 points: 2 points for each formula)
Student
Explicit formula
Ernest
Denise
6Using the explicit formula, calculate how far the students will be swimming on week 10 using Ernest's schedule. (3 points)
7Using the explicit formula, calculate how far the students will be swimming on week 10 using Denise's schedule. (3 points)
8Making a Decision
Which training schedule will get them ready to swim 5 km in time for the half-marathon? (1 point)
Answers: 2
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