4 years ago

What is y = –3x2 + 12x – 21 in vertex form?

1 answer:

6 0

6990.2 do you understand cuase you have to multipky the three by the twenty one then take a way the plus and minus signs then move the whole equation on the other side of the equal sign

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It appears that the Pythagorean theorem can be applied to this problem
(distance to shadow)² = (height of building)² + (length of shadow)²
(38 m)² = (height of building)² + (28 m)²
660 m² = (height of building)²
Then the height of the building is
height of building = √660 m ≈ 25.7 m

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3 years ago

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Step-by-step explanation:

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