is in quadrant I, so
, which means
, so
belongs to the same quadrant.
Now,
Since
, it follows that
Since
belongs to the first quadrant, you take the positive root (
for
in quadrant I). Then
is also positive for
in quadrant I, so you take the positive root again. You're left with
Answer:
25.5 seconds
Step-by-step explanation:
Given that the stopwatch records times to the nearest thousandth of a second, it means that the time recorded will be given at 3 decimal places.
To get the time in the nearest tenth of a second, we would first convert to the nearest hundredth of a second, at this, the reading of 25.453 seconds will be
= 25.45 seconds
Since the number at the hundredth position is 5 (or more), we would add 1 to the number at the tenth position to round it to the nearest tenth. Hence the reading to the nearest tenth
= 25.5 seconds
Answer:
I think A
Step-by-step explanation:
With the equasions shown A makes the most sense
Petri dish A has 1080000000000000
Petri dish B has 270000000000
Petri dish a is greater by 1.07973E15
Hope that helped :)
