21 A drone's descent from high above the school was recorded by students in the robotics class. The graph shows
the height of the drone after x seconds of descent.
y Drone Flight
60
55
50
45
40
Height of Drone (feet)
35
30
25
20
I
15
10
5
0
6 12 18 24 30 36 42 48
Time (sec)
A
B
What is the range of the function for this situation?
All real number less than or equal to 39.
All real numbers less than or equal to 55.
All real numbers greater than or equal to 0 and less than or equal to 39.
All real numbers greater than or equal to 0 and less than or equal to 55.
С
D
M

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

ok so the answer to your question is simple as long as you look at the different dimensions that contain the exemplary letters that combined in the right order give you words that eventually within the 5th dimension will conform and give you the correct answer to your question. hope i , stop looking at this easily, look at it with a spectral view.

step-by-step explanation:

told you