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Answer:
Consider the finite arithmetic sequence,
Use the explicit formula for an arithmetic sequence,
...... (83.84.94.92.91.100
First term of the sequence is
Area of triangle = 1/2 x base x height
Given that base = 11 yards and height = 13 yards
Area of triangle = 1/2 x 11 x 13 = 71.5 yards²
Answer; 71.5 yd²
Answer:
2.4 hours or 2 hours and 24 minutes
Step-by-step explanation:
Jack mows 1/6 of the lawn per hour while Marilyn mows 1/4 of the lawn together. Adding up those rates yields in their combined mowing rate:

The time required for them to mow the entire lawn is:

It would take them both 2.4 hours to mow the lawn together.