True or False:
Bacteria, viruses, fungi, and protozoans can all cause different diseases.
True
about 80 percent of infectious disease is spread by hand contact; true or false.
True.
the best way to avoid food poisoning is to:
A. Follow food safety rules.
B. Only wash surfaces After preparing food.
C. Cook everything.
D. Only eat fruit and vegetables.
A. Follow food safety rules.
Solve:
6C3
A. 120
B. 720
C. 20
D. 240
A. 120
Explanation:
6C3 = (6!)/(3!*(6-3)!)
= (6*5*4)/(3*2*1)
= 120
which is not a combination:
A. Choosing three toppings for your pizza.
B. Lining three students up in a row.
C. Choosing three desserts from a tray of ten.
D. Choosing 5 students to represent a class of 30.