A. That would be 12C4 = (12*11*10*9) / (4*3*2*1) = 495 ways
b. This is 7C4 = 7C3 = (7*6*5) / 6 = 35 ways
c. This would come to 7C4 / 12C4 = 35/495 = 7/99
Answer:
43
Step-by-step explanation:
Answer:
ur doing exams
Step-by-step explanation:
hahhaha ur doing exams
Answer:
B. right
Step-by-step explanation:
Assuming one side of the triangle is the diameter of the semicircle, the triangle will always be a right triangle. (This is a useful fact to remember.)
Answer:
Step-by-step explanation:
- Initial number of bacteria = 3.3 million
- Growth rate = 2.5 times per 10 minutes
- Time = 30 minutes = 3*10 minutes
<u>Number of bacteria after 30 minutes:</u>
Correct choice is C
