Question

17. The mean proportional between 2.5 and 0.9 is
1)15
2) 1.5
3) 0.15
4) 11.5​

Answer 1

Answer:

1.5

Step-by-step explanation:

See in the attachment.

Answer 2

Step-by-step explanation:

Let mean proportional be 'x'

=>2.5/x=x/0.9

2.5/x=x/0.9=>2.5*0.9=x*x

2.5/x=x/0.9=>2.5*0.9=x*x=>2.25=x^2

2.5/x=x/0.9=>2.5*0.9=x*x=>2.25=x^2=>√2.25=x

2.5/x=x/0.9=>2.5*0.9=x*x=>2.25=x^2=>√2.25=x=>x= 1.5

Thus, mean proportional be 'x'=1.5