A polyhedron has 9 vertices and 16 edges. How many faces does it have?

9 faces

Step-by-step explanation:

In geometry, we use Euler's formula, and it looks like this:

V − E + F = 2

where

V= the number of vertices of a polyhedron

E= the number of edges of a polyhedron

F= the number of faces of a polyhedron.

V = 9

E = 16

F = ?

V − E + F = 2

9 - 16 + F = 2

F = 2 + 16 - 9

F = 9

answer is 67%

step-by-step explanation:

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.