In each diagram shown below, solve for the length of side CD using the information given. Show the trig ratio you use and your a
lgebra to find your final answer. Round all answers to the nearest tenth
1 answer:
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so, this is a quadratic equation, meaning two solutions, and we have a factored form of it, meaning you can get the solutions by simply zeroing out the f(x).
so the zeros/solutions are at x = 3 and x = -11, now, bearing in mind the vertex will be half-way between those two, checking the number line, that midpoint will be at x = -4, so the vertex is right there, well, what's f(x) when x = -4?