Which of the following should be avoided when proving a trigonometric identity? Rewriting all expressions in terms of Sine and Cosine.
Factoring
Using a common denominator
Multiplying each side by the same value

This is part of my homework and I can't contact my teacher for it so I need some help

Apolygon is shown on the graph: a polygon is shown on the coordinate plane. vertices are located at 3 comma 5, 1 comma 3, 1 comma 1, 2 comma 0, 4 comma 0, 5 comma 1, and 5 comma 3. what effect will a translation 3 units down and 2 units left have on the polygon? be sure to address how it could impact the angles, side lengths, and congruency between the original pre-image and the image. xd i need

Afarmer has 5 times as many cows as pigs. the farmer only has cows and pigs, and he has 168 animals. how many cows does he have?

(: the two box-and- whisker plots below show the scores on a math exam for two classes. what 2 things do the interquartile range tell you about the two classes?