The difference between combinations and permutations is ordering. With permutations we care about the order of the elements, whereas with combinations we don't. For example, say your locker “combo” is 5432. If you enter 4325 into your locker it won't open because it is a different ordering (aka permutation).
(On google)
Your answer would be B
You can ignore the fraction and do
7-1
Which gives you 6.
Then add the fraction, and your final answer is
6 1/2
The answer is 24/10, simplify that and u get 12/5, simplify that again and lastly u get 2 2/5. hope this helps
The averge rate for time is 1.5 and the averge rate for height is 148
In order for it to be a rectangle all four angels have to be 90 so:
13x+34+10x+10=90
23x=46
X=2
