How do I write "5 times less than 10x"? (will give brainliest)

Given tan∅=4/3 and π< ∅< (3π)/2; find cos2∅ a. -24/25 b. 24/25 c. -24/7 d. -7/25

The center of a circle represent by the equation (x+9)^2+(y-6)^2=10^2 (-9,6), (-6,9), (6,-9) ,(9,-6)

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons