Answer:
5
Step-by-step explanation:
1. in order to calculate all the required values, it needed to solve:
2. x≥5 means, that x∈[5;+∞), where beginnig is '5'.
1. 1 +2r = 2. 12 = 18 - d 3. 5b + 10 = 30
2 answers:
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Answer:
Option B:
Step-by-step explanation:
The parabola has its concavity downwards, so we need a function in the model:
With a negative value of 'a'
The vertex is (0,0), so we have that:
The x-coordinate of the vertex is given by the equation:
So we have a function in the model:
With a < 0
The only option with this format is B: