ACTIVITY 4 Number relations Look at the pattern 4+6+8=18 8+10+12=30 12+14+16=42 a) Write next lines of the pattern. b) Write the relation between the sum and middle number in each line, c)Write the general principle of the above pattern in ordinary language. d) Write it as an algebraic expression using letters.

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price

Ascientist places 24 cells in a petri dish. she knows the cells grow at an exponential rate, doubling in number every hour. how long will it take (in hours) for there to be 1100 cells in the dish? time to 1100 cells: 5.51832530 hours how long will it take to reach 110 cells? time to 110 cells : 2.1963972 hours what is the average rate of change in the number of cells between 9 hours and 11 hours? average rate of change: cells per hour what is the instantaneous rate of change after 7 hours? instantaneous rate of change: cells per hour note: you can earn partial credit on this problem.