Prove that:
(a)
(1 + tan A)2 + (1 – tan A)2
(1 + cot A)2 + (1 - cot A)2
=
tan? A

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Asap for seven months an ice creams vendor collects data showing the number of cones sold a day (c) and the degrees above 70 degrees f the vendor finds that there is a positive linear association between c and t that is the best modeled by this equation c=3.7t+98 which statement is true? the model predicts that the average number of cones sold in a day is 3.7 the model predicts that the average number of cones sold i a day is 98 a model predicts that for each additional degree that the high temperature is above 70 degres f the total of number of cones sold increases by 3.7 the model predicts for each additional degree that the high temperature is above 70 degrees f the total number of cones sold increasingly by 98

What does the sign of the slope tell you about a line?