<span>You can select from any of the 8 on the first day, leaving 7 to choose from on the second day, leaving 6 for the third. So, 8 x 7 x 6 x 5 x 4 x 3 x 2 or 8! That's 8factorial, so multiply those out or use a calculator to get 8! and that is your answer.</span>
B) y = -2x
when x = a
y = -2a
when x= 2a
y = -2(2a) = -4a
1. 7 : 07
2. 9 : 45
3. 6
4. 2 : 25
5. 8
6. 17
This is a trick question. First just understand that any number over itself is 1 so
is just
so it is just
2
56=2(pi)(r)
r=8.9127
pi(8.9127)^2=249.56cm^2
≈245cm^2 (3s.f.)
