Ramesh took 30 minutes to jog from home home to a nearby park at a speed of 100 m/min. he took 5 minutes lesser to jog home from the park via the same route. at what speed did he jog home from the park?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

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.

Ireally need subtract and simplify.(-y^2 – 4y - 8) – (-4y^2 – 6y + 3)show your work, ! i will mark you brainliest but you have to show your work.