The cone pictured has a surface area of ? square meters. (Use 3.14 for π .)

268.34 m^2

Step-by-step explanation:

The area of the base is

.. A = πr^2

The lateral area is

.. A = πrh . . . . . where h is the slant height

The total area is

.. π(r^2 +rh) = πr(r +h)

total surface area = 3.14*(5 m)*(5 m +11 m) = 251.2 m²

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.

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50