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Q49: <span class="ql-formula" data-value="\begin{array} { l } \mathrm
Q54: <span class="ql-formula" data-value="0 . \overline { 4
Q91: If (a, 3) is a point on
Q137: A pendulum bob swings through an arc
Q145: Payments of $100 are made at the
Q159: <span class="ql-formula" data-value="f ( x ) =
Q180: <span class="ql-formula" data-value="8 x + 7 y
Q199: <span class="ql-formula" data-value="\left\{\begin{array}{l}y \geq x^{2}-8 \\y \leq-x^{2}\end{array}\right."><span
Q234: <span class="ql-formula" data-value="f ( x ) =
Q238: Find a11 when a1 = -5, r