- What is the common difference of the AP 11,-1,-13, -25, ... ?
​

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Ineed with number 6 , explain how to get 1978

How many real-number solutions does the equation have? -4x^2 + 10x + 6 = 0 a. no solutions b. two solutions c. infinitely many solutions d. one solution