Given: PR = RS = PS, NS = 8,
NO ⊥ (PRS)
m∠NSO = 70°
Find: V of a cone that is inscribed in a triangular pyramid

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Answer for 10 points show work you guys in advanced < 3

How can you find the mean absolute deviation (mad) for this set of data?