Please help! Correct answers only please! I need to finish this assignment before Friday. Given a student number system for a county requires that the student number be 6 characters.

The first 4 characters are any single digit number but no character can repeat and the last two characters must be a letter and letters cannot be the same. How many unique student numbers are possible?

A. 6,500,000

B. 3,276,000

C. 3,407,040

D. 6,760,000

your answer is the frist one

hop i

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!

[2, 2.5)

(2.5, 3]

step-by-step explanation:

i think its these two not sure [2, 2.5)

(2.5, 3]