Help me with this plssIf x^2+1/x^2
n%20x%2B%5Cfrac%7B1%7D%7Bx%7D%3D%3F" id="TexFormula1" title="x^{2} +\frac{1}{x^2}=10; then x+\frac{1}{x}=?" alt="x^{2} +\frac{1}{x^2}=10; then x+\frac{1}{x}=?" align="absmiddle" class="latex-formula">
1 answer:
(<em>x</em> + 1/<em>x</em>)² = <em>x</em> ² + 2 + 1/<em>x</em> ² = 10 + 2 = 12
==> <em>x</em> + 1/<em>x</em> = ±√12
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If it is fractions then the answer is -7/15. Think of as 8/15 - 1/15 except the answer is a negative number
h = t - 15
h + t = 33
Because we have a value of h, we can plug it into the second equation to solve for t.
t - 15 + t = 33
Add 15 to both sides.
t + t = 48
Combine like terms.
2t = 48
Divide both sides by 2.
t = 24
<h3>Thomas's age is 24.</h3>
the answer is C, because you solve 2.815-749, and after you divide the result per 4, so it is 1/4
The correct answer is number one
