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marin [14]
4 years ago
13

" {3r}^{2} - 2 = 46" align="absmiddle" class="latex-formula">
​
Mathematics
2 answers:
zhannawk [14.2K]4 years ago
7 0
3r^2 – 2 = 46

• Add 2 on both side; 3r^2 = 48

• Remove the square from 3r by putting the square root of 48 = 6.9 hence:
3r = 6.9

• divide both sides by 3; 3r/3 = 6.9/3
r = 2.3
mestny [16]4 years ago
5 0
Start by adding 2 to both sides to get 3r^2 = 48. then divide both sides by 3 to get r^2 = 16. square root both sides to get r = 4.
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