Question

A school uses a phone tree to contact each student's family. The principal's secretar calls 3 families, then each family calls 3 other families and so on. How many familie will be notified during the 7th round of calls? Given: The secretary calls 3 families. Secretary In each round, the number of calls is a power of 3. 1st round: 3 calls = 3 = 31 2nd round: 9 calls = 3 x 3 = 32 So, during the 7th round, there will be 37 calls. 37 = 3 x 3 x 3 x 3 x 3 x 3 x 3 = 2187 Hence, during the 7th round of calls, 2187 families will be notified. st 1 ro -3 AA 2nd be​

Answer 1

Answer:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities.

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

When school closes, A school uses a phone tree to contact each student's family the principals' secretary calls 3 families, then each family calls 3 other families and so on. How many families will be notified during the 7th round of calls?

First round:

1→3

1

=3

Second round:

2→3

2

=9

Third round:

3→3

3

=27

and so on,

Seventh round:

7→3

7

=2187

2187 families will be notified during the 7th round of calls.