Xét các số phức z=a+bi (a, b€ R) thỏa mãn |z -4-3i|=5. Tính a+b khi biểu thức T=3|z+2i|²+2|z-4+i|²+|z+2-2i|² đạt giá trị lớn nhất.

Someone answer asap for ! 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.

Julia bought 7 hats a week later half of all her hats were destroyed in a fire. there are now only 12 hats left with how many did she start

What are the solutions of the equation x4 – 5x2 – 14 = 0? use factoring to solve. someone !