Mathematics: please help... its 7 am and i havent slept all night bc ive been doing hw and i just want to get at least an hour of sleep before i have to get ready for work

please help... its 7 am and i havent slept all - id713565335, mariahgriego1125

solikhalifeoy3j1r

30.06.2021

Step-by-step explanation:

$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$

$x = \frac{-2 \pm \sqrt{2^2 - 4 (-8)}}{2}$

$x = \frac{-2 \pm \sqrt{4 + 32}}{2}$

$x = \frac{-2 \pm \sqrt{36}}{2}$

$x = \frac{-2 \pm 6}{2}$

$\left \{ {{x = \frac{-2 + 6}{2}} \atop {x = \frac{-2 - 6}{2}}} \right.$

$\left \{ {{x = \frac{4}{2}} \atop {x = -\frac{8}{2}}} \right.$

$\left \{ {{x = 2} \atop {x = -4}} \right.$

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Unicorn66y

03.09.2021

Step-by-step explanation:

2 servings are at 40, 3 servings are at 60, 5 servings are at 100.

The common difference is 20.

60+20=80

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