% error
( true value - measured value) / true value x 100%
We'll check your answer....if you want .....
"10" appears 4 times in the rows 0 - 14 inclusive
The number of elements in the first n rows = (n + 1) (n + 2) / 2
So....the number of elements = (14 + 1) (14 + 2) / 2 = 15 * 8 = 120
So
P(10) = 4 / 120 = 1 / 30
t = floor (2 * t) - 3
t will have to be an integer since floor (2*t) will always produce an integer
t = 3 is the only value I find
72 = (12) ( 2 + 0!) !
Question....we have to use all four digits in each expression......can we repeat any (or all) of these ???
If so.....we have it made.....!!!!
C ( a, b) is a combination
It counts sets of things
Let's suppose that we have 10 different objects and I want to choose any two of them....the number of different sets = C (10,2) = 45 different sets
4x + 16 ≤ -20 subtract 16 from both sides
4x ≤ -36 divide both sides by 4
x ≤ -9
There is a "formula" for finding the nth Fibonacci number
Fib (n) = Phi^n - (-phi)^n
_______________
sqrt (5)
Where Phi = 1 + sqrt (5) and phi = sqrt (5) -1
__________ __________
2 2
See my answer under your original post....
nk ways where n = boxes and k = number of balls
(We are assuming no restrictions....we can have some boxes empty)
Try this ?????
(-inf, 2/x) U (2/x, infinity )