Aconvex polyhedron has 30 edges and 8 fewer vertices than faces. how many faces does the polyhedron have?

formula for polyhedrons is V-E+F=2

F= faces = unknown F

V= vertices=F-8

E= edges=30

(F-8)-30+F=2

add the 2 F's and 30 & 8 so you get 2F-38=2

ince -38 doesn't have variable move it to other side by adding 38 to both sides

2F=38+2 which becomes 2F=40

now divide both sides by 2 to get F=20 so there are 20 faces

what is the question?

step-by-step explanation:

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!