Answer:
Yes.
Step-by-step explanation:
A quadrilateral is any polygon with four sides. A rectangle, by definition, is a polygon with four sides and four right angles. Thus, every rectangle is a quadrilateral.
Answer:
E(X) = 17.4
Step-by-step explanation:
We can calculate the expected value of a random X variable that is discrete (X takes specific values ) as:
E(X) = ∑xp(x) where x are the specific values of x and p(x) the probability associated with this x value.
In this way the expexted value is
E(X) = ∑xp(x) =(16*0.6)+(18*0.3)+(20*0.2) = 8+5.4+4 = 17.4
I believe it’s a but I’m not exactly sure
Answer:
It equals 420.
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
