Someone answer this or at least explain this to me !

calculate the wavelength of the laser light for a) d = 1/500 mm and b) d = 1/1000 mm. use the modified “grating equation” given below:
nλ = d (x/l)
remember to keep all calculations in millimeters (mm) until the end and then convert your answer to nanometers (1 nm = 10‐6mm)

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

do you have a picture of the table

5

step-by-step explanation: