2 years ago

SOLVE EQUATION BY TAKING SQUARE ROOTS. -100+81a^2=0

2 answers:

belka [17]2 years ago

8 0

GOOD MORNING AND CONGRATULATIONS ON YOU GRADUATING :D

7 0

Answer:

a = ±10/9

Step-by-step explanation:

$-100+81a^2=0\\81a^2=100\\a^2=\frac{100}{81}\\\sqrt{a^2}=\sqrt{\frac{100}{81} }\\a=10/9\\a=-10/9$

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