A certain element has a half life of 4.5 billion years. a. You find a rock containing a mixture of the element and lead. You det
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Answer:
28 ft
Step-by-step explanation:
Let longer side of rectangle be and the shorter side be
, thus we can write the ratio:
<em>Now putting 21 into S, we solve for L:</em>
Hence, length of longer side is 28 ft.
a vertical axis, I assume it means a vertical axis of symmetry, thus it'd be a vertical parabola, like the one in the picture below.
