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Andreas93 [3]
3 years ago
10

Martin is building a rectangular fire pit in his backyard. He dug a hole 30 inches by 30 inches. He decides to make each side of

the pit 6 inches longer.
What is the percent increase in the area of the fire pit
Mathematics
1 answer:
padilas [110]3 years ago
6 0

Answer:it is d

Step-by-step explanation:

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Complete the square:

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The y-intercept has x-coordinate equal to 0, so it corresponds to the value of F(0) :

F(0) = -3 (0 + 1)² - 2 = -3 - 2 = -5

The axis of symmetry is the vertical line running through the vertex of this parabola, so we'll come back to this.

The vertex of the parabola is (-1, -2). This represents the maximum value of F(x), which follows from

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As mentioned earlier, the axis of symmetry is the vertical line through the vertex, and its equation is determined by the x-coordinate of the vertex. Hence the AoS is the line x = -1.

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