1. x2 + 4 > 0 2. x2 + 3x + 2 < 0
3. x2 < 16
4. x2 - x > 20
5. x2 + 2x +1 <0
6. x3 + 2x2 - 4x 38
7. x2 - 6x > -9
8. x2 + 25 50

Write an equation for the function that includes the points (2,100)and (3,100)

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

Which ordered pair is the best estimate for the solution of the system of equations? the graph of the system of equations : y = 3/2x +6 and y=1/4x - 2 , -3) .5, -3.5) , -4) , -3.5)