Question

If someone could help me that would be great

Answer 1

R^2 = 4.84
$\sqrt{r} = \sqrt{4.84}$

Answer 2

If r² = 4.84, that means that r = +-√4.84. We can rewrite 4.84 as 484/100, giving us

$r=\pm\sqrt{\frac{484}{100} }= \pm\frac{\sqrt{484}}{10}$

We can break 484 down into the factors 4 and 121 (since 484 = 4 x 121), letting us rewrite the expression as

$r=\pm\frac{\sqrt{4}\sqrt{121}}{10}$

Since √4 = 2 and √121 = 11, this simplifies to

$r=\pm\frac{2\cdot11}{10} =\pm\frac{22}{10} =\pm2.2$

So our final answer is r = 2.2 or -2.2