The expected value of a discrete random variable is the most likely or

a. highest probability value for the random variable
b. will always be one of the values x can take on, although it may not be the highest probability value for the random variable is the average value for the random variable over many repeats of the experiment
c. None of these alternatives is correct.

answer: translate the circles so they share a common center point and dilate circle y by a scale factor of 3.

answer is

b.

1.67

hope you get this right.

diagonal is     or     16.97

step-by-step explanation:

from pythagorian theorem we know,

if a is perpendicular, b is base and c is hypotenuse,

then we get

now, for a square,

perpendicular and base are equal,

since all the sides of a square are equal.

so, we get,

this is the special version of pythagorian theorem for a square.

so, if the diagonal is d and length is 12 , then we get

by square rooting we get,