4/5. 4/5 is the correct answer
Answer:
Chicago marathon runners
Step-by-step explanation:
Due to the strict qualifying time, the runners of the Boston marathon are going to very prepared, and quite close in their times. Since they are going to be close, the standard deviation is expected to be small.
Otherwise, in the Chicago marathon, anyone can run. This means that along with the professional runners, who are going to be very prepared, other unprepared runners will compete, and they are going to take a long time to complete the race, adding variation to the finishing times. The standard deviation is the square root of the variance, so since the variance for the Chicago marathon will be higher, the standard deviation also will
i know that the three movies are 11.97 but i just cant seem to find the others sorry
Answer:
the first answer option
Step-by-step explanation:
|x + 4| = 2
so,
(x + 4) must be +2 or -2 to make the original equation true.
when is (x + 4) = 2 ?
x + 4 = 2
x = -2
when is (x + 4) = -2 ?
x + 4 = -2
x = -6
so, -6 and -2 are the correct solutions.
