Which eqyivalent to the square root of negative 80?

What kinds of numbers have an odd number of factors?

Solve the word problem. the table shows the low outside temperatures for monday, tuesday, and wednesday. by how many degrees did the low temperature increase from monday to tuesday? this function table shows the outside temperature for a given a. 21.1⁰ b. 8.6⁰ c. 4.9⁰ d. 3.9⁰(the picture is the graph the the question is talking about.)

1. what is the measure of ∠abc? what is the measure of ∠abd?