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luda_lava [24]
3 years ago
12

O) x² – 18x - 19 + 20y - y2,​

Mathematics
1 answer:
pshichka [43]3 years ago
7 0

Answer:

19x-19+23y

Step-by-step explanation:

add the like terms

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Alex787 [66]
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Here, we want to find the diagonal of the given solid

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To get this, we use Pythagoras' theorem for the base

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Now, to get the diagonal, we use the triangle with height 5 mm and the base being the hypotenuse we calculated above

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