Proofs
*ON THE PICTURE*

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Write and solve a real word problem that involves determining distance on a coordinate plane

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236