what is 2 1/8 - 1 3/8 ? move numbers into the boxes to show the answer if there os no whole number move a 0 to the first box

Mathematics

1 answer:

stepan [7]2 years ago

5 0

$2 \frac{1}{8} - 1 \frac{3}{8}$

Convert the mixed number to an improper fraction

$\frac{17}{8} - \frac{11}{8}$

Take the LCM of denominators and Subtract them

$\frac{3}{4}$

$\rm \: or \: 0.75$

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kumpel [21]

The solution to given quadratic equation is x = -0.3851 or x = 10.3851

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Given equation is:

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$\begin{aligned}&x=\frac{-40 \pm \sqrt{40^{2}-4(-4)(16)}}{2 \times-4}\\\\&x=\frac{-40 \pm \sqrt{1600+256}}{-8}\\\\&x=\frac{-40 \pm 43.081}{-8}\\\\&x=\frac{-40+43.081}{-8} \text { or } x=\frac{-40-43.081}{-8}\\\\&x=-0.3851 \text { or } x=10.3851\end{aligned}$