Answer:
960
Step-by-step explanation:
We can find the number of unique combinations by
Multiplying 4*5*6*8
960
There are 960 possible choices by picking 1 from each group
Answer:
26 yd^2
Step-by-step explanation:
Area of Triangle = 1/2(b*h)
base = b = 13 yd
height = h = 4yd
Area of Triangle = 1/2(13*4) = 26 yd^2
For 8 rooks
Without conflict (i.e. there is no row or column can contains 2 rooks)
then there are 8 choices for the first one in the first column, 7 choices in the second, ...1 choice in the last (eighth) column for a total of
8!=40320 ways.
Unlimited conflicts
there are 64 choices for the first, 63 for the second, .... 57 for the last, for a total of 64!/56!=178462987637760 ways
Similarly, for n rooks, with unlimited conflicts, there are
64!/(64-n)! ways
Answer:

Step-by-step explanation:

To solve this put 5 Instead of n

Hope this helps you.
Let me know if you have any other questions :-):-)
A unit rate is something per one.
That means that we also need to include units so that we could know what we are talking about.
Basically divide, since this one is simple.
15/2 = 7.5
7.5 degrees per hour is our unit rate