3 years ago

Which of the following equations is of a parabola with a vertex at (1, -2)?

1 answer:

8 0

The general eaquation of a parabola in terms of its vertex is:

y = a(x - h)^2 + k

where the vertex point is (h, k)

therefore, an equation of a parabola with vertex (1, -2) is:

y = 5(x - 1)^2 - 2

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A triangle has side lengths 2.83 m, 4 m, and 2.24 m. The angles measures are 45°, 63°, and 72°.

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Answer:

D) acute scalene

Step-by-step explanation:

<h3>What are the definitions?</h3>

Obtuse triangle - the triangle with angle greater than 90°;
Acute triangle - the triangle with all interior angles under 90°;
Isosceles triangle - the triangle with a pair of equal sides;
Scalene triangle - the triangle with all three sides (or angles) of different measure.