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Stella [2.4K]
2 years ago
10

To earn a fitness award, your average heart rate while walking must be between 80 and 89 beats per minute, inclusive. Suppose yo

u recorded 85, 81, and 87 beats per minute on your first three recordings. What are the possible heart rates you can have on the fourth and final recording in order to earn a fitness award?
(GIVING 25 POINTS)
Mathematics
2 answers:
Anika [276]2 years ago
5 0

Answer:

84

Step-by-step explanation:

hope this helps

Anna [14]2 years ago
5 0
I would say about 82
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What is the square number of 13 27 81 21 43 48 23 39 45
Setler [38]

The given numbers are 13, 27, 81, 21,43, 48,23,39,45.

Square number is that number which is a perfect square means if you multiply a number by itself the number you obtained is a perfect square i.e it's square root is a natural number.

√13=not a natural number

√27=√3×√3×√3=3√3=irrational number

√81=√9×√9=9=a natural number

√21=not a natural number

√43=not a natural number

√48=4√3=not a natural number

√23=not a natural number

√39=not a natural number

√45=3√5=not a natural number

So, out of following numbers 13 27 81 21 43 48 23 39 45→81 is the only square number.

8 0
3 years ago
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