Question

maths 6th std



Ncrt maths guestion lesson 9 exercise 9.1 13 guestion

Express 1 by 5 + I 2 by 5 - 4 + I 5 by 2 in a + ib form 

the average number of calories in a regular-size bagel is 240.if the standard deviation is 38 calories,find the range in which at least 75% of the data will lie.use chebyshev's theorem

1. Maths ncrt 9 class chapter 9

solve 2x+3y=11 and 2x-4y=-24 and hence find the value of m for which y=mx+c