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TiliK225 [7]
3 years ago
11

What is the x-value of the vertex of f(x) = -x2 + 9x - 11 ?

Mathematics
2 answers:
Lemur [1.5K]3 years ago
7 0

Answer:

at the vertex x = 4.5

Step-by-step explanation:

Bogdan [553]3 years ago
6 0

Answer:

at the vertex x = 4.5

Step-by-step explanation:

hope this helps! :)

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Theo, Nancy, and Mary each drove separately to meet at Approximately how
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Mary's house is approximately 49.73 miles from her grandmother's house.

The distances the three drove were;

Mary drove for 49.73 miles, Theo drove 50 miles and Nancy drove 53.299 miles.

Explanation:

  • The given triangle has a 13 mile long adjacent side, a 48 mile long opposite side and the distance of Mary's route is the hypotenuse. As we have two sides of the triangle, we can solve for the length of the other side by using Pythagoras' theorem.
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  • So Mary drove the shortest distance of 49.73 miles, second shortest was Theo who drove for 50 miles and the longest was Nancy who drove for 53.299 miles.

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