Two sprinters, Christopher and Nick, want to find out who has the faster time when compared to each of their teams. Christopher has a time of 10.8 seconds, and his team has a mean time of 11.5 seconds and a standard deviation of 0.4
seconds. Nick has a time of 11.1 seconds, and his team has a mean of 11.6 seconds and a standard deviation of 0.2
seconds. Who has the faster time when compared to each of their teams?

answer: given that the roller coaster can accommodate 1600 riders per hour, thus the roller coaster can accomodate 1600 / 60 = 26.67 riders per minute.

given that there are 345 people in the line, the number of minutes it will take for the 345 persons to get into the roller coaster is given by 345 / 26.67 = 12.94 minutes.

therefore, it will take you 12.94 minutes to get to the front of the line.

step-by-step explanation:

answer: 0.1,0.85

step-by-step explanation:

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: