10 points! find the product of z1 and z2, where z1 = 8(cos 40° + i sin 40°) and z2 = 4(cos 135° + i sin 135°). a) 32(cos 40° + i sin 40°) b) 12(cos 175° + i sin 175°) c) 32(cos 5400° + i sin 5400°) d) 32(cos 175° + i sin 175°)

Solve the equation x/4 - 5= -8 -27 -12 -7 12

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)