Question
Maths
Nov. 17, 2024, 1:49 p.m.
Answer
Subtract the sum of 8x-5y-2z and -6x+8y-4z from the sum of 6x-2y-4z and -2x+4y-8z
A quadratic equation ax2 +bx +c =0,a not equal to 0 will have equal roots if
Maths
Nov. 15, 2024, 7:41 p.m.
Answer
Average marks of 18 girls and 12 boys are 30 and 38 then average marks of whole class
With an example show that variations are necessary for species but not for individual