The length of BB' is 5.39 units.
Answer:

Step-by-step explanation:
Take two points from the graph
(0,24) and (6,12)
Find the slope
The formula to calculate the slope between two points is equal to

substitute

---> is negative because is a decreasing function
Find the equation of the line in slope intercept form

we have

Note: The y-intercept is given (0,24)
substitute

Answer:
A random variable is a variable whose values are unknown. Random variable are mostly used in regression analysis to determine the statistical relationship between two entities.
Step-by-step explanation:
There are two types of random variable;
1. The discrete random variable and
2. The continuous random variable.
Answer:
15°
Step-by-step explanation:
All angles in an equilateral triangle are equal.
Angle sum property of triangle = 180°
<1 + <2 + <3 = 180°
<1 = <2 = <3 = 60°
4y = 60
y = 60/4
y = 15°