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liubo4ka [24]
3 years ago
10

5) 10r2 + 3 = 813how do I solve by square roots ​

Mathematics
2 answers:
kodGreya [7K]3 years ago
7 0

10r² + 3 = 813

10r² = 813 - 3

10r² = 810

r² = 810 ÷ 10

r² = 81

r = √81

r = <u>9</u>

So, the value of <em>r </em>is 9

<em>Hope </em><em>it </em><em>helpful </em><em>and </em><em>useful </em><em>:</em><em>)</em>

Oksanka [162]3 years ago
6 0
The answer is r^1=-9, r=-9 because you have to solve the equation.
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