+116 \(\frac{7.5}{2}=x*3.14^2\)
1) First you square 3.14 3.14^2 = 9.8596
which gives you
\(\frac{7.5}{2}=x*9.8596\)
2) divide 7.5 by 2
7.5/2 = 3.75
and then you get 3.75 = x * 9.8596
3) finally you divide 3.75 by 9.8596 to solve for x
3.75/9.8596 = 0.3803399732240659
and rounded to the nearest tenth is 0.38
4) your final anwser is 0.38=x
