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MaRussiya [10]
3 years ago
11

I don’t know where to start, I need help.

Mathematics
1 answer:
NeX [460]3 years ago
5 0

Answer:

72 cm^3

Step-by-step explanation:

find the volume of the big block and the volumem of the smaller block and subtract it

(8 x 2 x 5) - (2 x 2 x2)

= 80 cm^3 - 8 cm^3

= 72cm^3

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Answer:

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quadratic\: formula

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x_{1,\:2}=\frac{-7\pm \sqrt{301}}{2\left(-7\right)}

\frac{-7+\sqrt{301}}{2\left(-7\right)}

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\frac{-7-\sqrt{301}}{2\left(-7\right)}

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=\frac{-7-\sqrt{301}}{-14}

answer=\frac{7+\sqrt{301}}{14}

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