I think it's dual credit because when you take dual credit classes it counts as college credit too
There are C(29, 4) = 29!/(4! (29 - 4)!) ways of selecting any 4 students from the total 21 + 8 = 29 students.
The teacher has C(21, 2) = 21!/(2! (21 - 2)!) ways of picking out 2 sophomores and C(8, 2) = 8!/(2! (8 - 2)!) ways of picking out 2 freshmen, so there are
C(21, 2) • C(8, 2) = 5880
possible ways of picking out 2 sophomore and 2 freshmen.
The probability of picking out a group of students like this is then
C(21, 2) • C(8, 2) / C(29, 4) = 280/1131 ≈ 0.2476
In 2009, roughly 4% of people age 12 or older who did NOT drink alcohol were current users of illegal drugs.
Answer:
D: Cellular respiration
Explanation:
Because we work in a sea of oxygen (air is 20.9% oxygen) it is difficult to measure the small changes in oxygen concentration that occured during respiration. The rate of Cellular Respiration can be measured in the dark by determining the amount of oxygen gas consumed in a period of time.
Hope this helps you out!
Answer:
graphics towards graphics designingWhat is
