a test was given to three classes with population 30,35,and 25.if the mean scores are 28,35 and 25 respectively.find the mean score of the three classes.
2.a circle center (-2,3) passes through the point (1,3).find its equation
3.find the fourth term of the binomial expansion of ( x-K)^5 in descending power of X......?
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Asked by bash2305 on 1st March, 2020
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