Answer:
to be honest I don't know either, but it's probably C
Assuming you want to choose 4 people from the class of 20;
Begin by using the combinations formula;
20C4=4845 possibilities
Hope I helped :)
Answer:
A triangle has sides of lengths 9,7, and 12 is not a right triangle .
Make a guess and check table to figure out if you do not know it off the top of your head.
The answer is 7 and 7
Answer:
104 yd^2.
Step-by-step explanation:
Area of the 2 circles = 2 * π r^2
= 2 * π * 4^2
= 32 π yd^2.
Area of the side of the cylinder = 2 π r h
= 2 π * 4 * 9
= 72 π yd^2.
Total surface area = 32 + 72
= 104 yd^2.
