Reza and nina are racing the length of a pool. after 20 seconds,
reza has swum 1/4 of the length of the pool, and nina has swum 3/4
of the length of the pool.

which best describes who covered more distance in 20 seconds?
reza covered more distance in 20 seconds because 3/4> 1/4 .
reza covered more distance in 20 seconds because 1/4> 3/4 .
nina covered more distance in 20 seconds because 3/4> 1/4 .
nina covered more distance in 20 seconds because 1/4> 3/4 .

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Ineed to know the answer to this algebra question.

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.