Answer: ~0.738
1. Firstly, let’s simplify the square root of 90:
2. Secondly, we have to rationalise the denominator by multiplying by denominator:
\frac{7}{3\sqrt{10}} * \frac{3\sqrt{10}}{3\sqrt{10}} =
\\ \\ \\
\frac{21\sqrt{10}}{90} [/tex]. And we can simplify it to:
. So this is the final answer, and if you want the score in decimals here it is:
Hope this helps!