Pat was shopping and found a jacket with the original price of $120 on sale for $12. What was the percent decrease in the cost? _% Hint: Change over original

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

In a certain pentagon, the interior angles are a, b,c, d,e where a, b,c, d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined