The polynomial negative 8.5 x squared plus 103 x plus 2026−8.5x2+103x+2026 models the yearly number of visitors (in thousands) x years after 20062006 to a park. Use this polynomial to estimate the number of visitors to the park in 20182018.

2038000 visitors

Step-by-step explanation:

Now in question expression has been repeated, so original expression is

Now according to given information "x" represent the number of years after 2006. So, for 2018, it will be

2018-2006 = 12 years

So, x = 12

putting value of x in expression

(-8.5)x(12)^2 + (103)x(12) + 2026

-1224 + 1236 + 2026

2038

Now the model shows the number of visitors in thousand, so you have to multiply your answer in thousand

2038 x 1000

= 2038000 visitors

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.