An object that is projected straight downward with an initial velocity v feet per second travels a distance
s = vt + 16t? where t = time in seconds. If a coin
dropped from a window 144 feet above the ground has an
initial velocity of O feet per second, in how many seconds
will the coin reach the ground?
O A. 12 seconds
O B. 9 seconds
O C. 4 seconds
O D. 3 seconds

Plz i want answer and i would appreciate it is is a b c or d

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?

Me max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.