Answer:
Well I think positive is to the right and negative is to the left
Answer:
5/14
Step-by-step explanation:
5/14 is the simplified form.
AB= 3x+4 + 5x-6 = 8x-2
the others are just what they are given as
Answer: 0.87 times per second (Or 52.2 times per minute)
Step-by-step explanation:
You need to make the conversion from minutes to seconds.
Remember that 1 minute has 60 seconds. Then 20 minutes to seconds is:

Find the number of times the heart beats in 1 second when it is rowing:

Find the number of times the heart beats in 1 second when it is resting:

Then the difference is:

(Or 52.2 times per minute)
Boa tarde! 1287 x 6 = 7722 Unidades
Ou 77 Centenas e 22 Unidades Espero que eu tenha lhe ajudado!