Angle
A is circumscribed about circle O. What is the length of AB

4

Step-by-step explanation:

In your imagination draw a line through A and O.  Reflect triangle ACO about this line.  Then AB is of the same length as AC:  4.

Similarly, the radii OC and OB have the same length, and so OB = 3.

answer: .64

step-by-step explanation

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

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph