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3 years ago

5

What are the solutions to the equation 9x2 = 49, rounded to the nearest tenth?

2 answers:

Sergio [31]3 years ago

8 0

I would go for A if anything

MariettaO [177]3 years ago

4 0

A.
<span>2.3, –2.3

Working;</span>
$9x^{2} =49$
$x^{2} = \frac{49}{9}$
<span>x=</span> $\sqrt{ \frac{49}{9} }$
x= +-2.3

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