Question

Find the value of A if...
121(A)²=100

Answer 1

121(A)²=100

=>(A)²=100/121=(10/11)²

=>A=10/11

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Hope it helps

Answer 2

Hello your answer is here ...

121(a)² =100
${a}^{2} = \frac{100}{121} \\ \\ {a}^{2} = \frac{ {10}^{2} }{ {11}^{2} } \\ \\ {a}^{2} = {( \frac{10}{11}) }^{2} \\ \\ a = \sqrt{ { \frac{10}{11} }^{2} } \\ \\ a = \frac{10}{11} ans.$