I need all these answered please-1) 6i-i 2) (12+3i)-(2+6i) 3) 5i(1+2i) 4) 8+4i divided by 4
Given a mean of 8 and a standard deviation of 0.7, within how many standard deviations of the mean do the values 7.7, 8.4, 9, 8, and 6.9 fall?2 1 0 3
Ali wants to buy a piano. the piano measures 19/4 feet long. she has a space 5 feet
Simplify(-8) exponent 2
How high is the tree 4m,5m=cm
Explain whether the figuers in b and d have the same area