exam
Maths Puzzle
Numerical Ability
The average of four numbers is 98. If three of the numbers are 86, 87, and 91, what is the fourth number?
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exam Other Question
The percentage of women in the 20-24 are group who have never married went from 55% in 1970 to 73% in 2000. Let 1970 be year 0 and 2000 be year 30.
a) find and interpret the slop
Any assistance is appreciated.
Thank You
Multiply
3 sqrt a(3sqrt3a^2+3sqrt^81a^2)