Find the vertex of this parabola:
y = -2x2 - 4x - 11

Find the total area for the regular pyramid ( follow the answer set up in the picture)

Find the solution(s) to x^2-14+49=0

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