78th term of -4,-2,0,

150.

Step-by-step explanation:

This is arithmetic sequence with common difference d =  2 and first term

a = -4.

nth term = a + d(n - 1)

78th term = -4 + 2(78-1)

= -4 + 77*2

= 150 (answer).

the transverse axis of a hyperbola is the line that contains the two vertices and the two focuses.

in this example (hyperbola of equation x^2/2 - y^2/4 = 1), the transverse axis is the  x-axis  . 

step-by-step explanation:

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.