The correct answer is y= -18/3x
19.87 is the answer hope it helped
Just count the zeros at the left. In your case <span>6
</span> so your number equals <span><span>0.428⋅<span>10<span>−6</span></span></span>
</span> and in scientific <span>4.28⋅<span>10<span>−<span>7</span></span></span></span>
10⁹ + 10⁸ + 10⁷ = 10⁷ (10² + 10¹ + 10⁰)
… = 10⁷ (100 + 10 + 1)
… = 10⁷ × 111
… = (2 × 5)⁷ × 111
… = 2⁷ × 5⁷ × 111
… = 2⁷ × 5⁶ × 555
