What is y squared plus 5y plus 2y squared minus 4y

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days