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Q19: <span class="ql-formula" data-value="\left\{ \begin{array} { l }
Q46: <span class="ql-formula" data-value="f ( x ) =
Q76: <span class="ql-formula" data-value="g ( x ) =
Q83: <span class="ql-formula" data-value="\mathrm { a } _
Q106: <span class="ql-formula" data-value="x ^ { 2 }
Q107: <span class="ql-formula" data-value="\sum _ { k =
Q171: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6901/.jpg" alt="
Q187: A town has a population of
Q233: <span class="ql-formula" data-value="f(x)=\frac{2}{9} x^{2}+\frac{4}{9} x-1"><span class="katex"><span class="katex-mathml"><math
Q260: An engineer collects data showing the