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3 years ago

14

Find x 3x-160 What is x?

2 answers:

sukhopar [10]3 years ago

8 0

$3x-160$

$\dfrac{3x}{3} -\dfrac{160}{3}$

$x=53.33333$

maw [93]3 years ago

4 0

X is 53.33333333 I love helping people out

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The polygons in each pair are similar. find the scale factor of the smaller figure to the larger figure.

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Use the lengths of corresponding sides
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The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain after 1000 years?

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3 0

2 years ago

An arched drainage culvert can be modelled by the function:

Zanzabum

Substitute 136.5 for y.

$136.5=\frac{x(191-x)}{60}$

$8190=x(191-x)$

$8190=191x-x^{2}$

$x^{2} -191x+8190=0$

Compare this equation with $ax^{2} +bx+c=0$

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$x=\frac{-b+\sqrt{b^{2}-4ac } }{2}$ or

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$x=\frac{191+\sqrt{191^{2}-4(1)(8190) } }{2}$ or

$x=\frac{191-\sqrt{191^{2}-4(1)(8190) } }{2}$

$x=\frac{191+\sqrt{36481-32760 } }{2}$ or

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$x=\frac{191-61}{2}$

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$x=\frac{130}{2}$

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Width = $\sqrt{(x_{2}- x_{1})^{2} +( y_{2}- y_{1}) ^{2}$

= $\sqrt{(126- 65)^{2} +(136.5-136.5) ^{2}$

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3 years ago

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3 years ago

Read 2 more answers