Find the axis of symmetry and the vertex of the graph of y=3x^2+2x
1 answer:
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Answer:
B
Step-by-step explanation:
Since the triangle is right use the tangent ratio to find x
tan22° = =
Multiply both sides by x
x × tan22° = 203 ( divide both sides by tan22° )
x = ≈ 502.5 m → B