Solve the equation 9x^⅔+4x^⅔=27​

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i

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