Question

s=n/2[2a+(n-1)d]
make a as the subject of the formula
medals will be given

Answer 1

a=−1/2dn+1/2d+n/4s

Answer 2

how can we give medals

Answer 3

by clicking best response

Answer 4

sheelo, can you post your last question again, i think i can solve it now

Answer 5

the question with C = x^2 + y^2 -

Answer 6

ok

Answer 7

C=x^2+y^2-z^2\[\div 2xy\]

Answer 8

solve for z ?

Answer 9

yep