Use the general formula" f(x) = a Vb(x - h) +k 3
2
-1
-5 -4 -3 -2 -1
1
2
3
-1
-2
-3
-4
-5

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

answer: x=3 and y=4

step-by-step explanation:

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,