Jim wants to win his classroom's gingerbread house decorating competition. He will outline the front of the house with an edible ribbon.
Using the figure below, determine the perimeter of the front of the
house so Jim can cut the ribbon to the correct length.
7.4 in
3.4 in
9 in

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

Need on this one asap im almost done with this subject

Solve for x where 0 equation: cot^2x+2cotx+1=0