In the graph, z is a complex number represented as a vector from the origin. What is the product of z and its conjugate?
1 answer:
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26 to nearest year
We require the total of the sums of ages for both groups before calculating the mean for all 16
using mean =
Women
27 = ( cross- multiply )
sum = 9 × 27 = 243
Men
25 = ( cross- multiply )
sum = 7 × 25 = 175
Total sum of all 16 = 243 + 175 = 418
mean = = 26 ( to nearest year )