NEED HELP! NEED HELP ASAP! If an object is projected upward from ground level with an initial velocity of 64 ft per sec, then its height in feet after t seconds is given by s(t)=-16t*2+64t. Find the number of seconds it will take to reach its maximum height. What is this maximum height?

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36

Assume that females have pulse rates that are normally distributed with a mean of mu equals 72.0 beats per minute and a standard deviation of sigma equals 12.5 beats per minute. complete parts (a) through (c) below. a. if 1 adult female is randomly selected, find the probability that her pulse rate is between 65 beats per minute and 79 beats per minute. the probability is? b. if 16 adult females are randomly selected, find the probability that they have pulse rates with a mean between 65 beats per minute and 79 beats per minute. the probability is? c. why can the normal distribution be used in part (b), even though the sample size does not exceed 30?