Consider the quadratic equation: (4x - 3)(4x + 3) Which statement best describes the roots of this quadratic?

A

Imaginary because discriminant is < 0

B

Real because discriminant is < 0

С

Imaginary because discriminant is > 0

D

Real because discriminant is > 0

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample