4. Simplify:
15x2 – 31x+14
49-25x?
9x2 - 4
10x2 +29x +21

Acompany wants to reduce the dimensions of its logo by one fourth to use on business cards. if the area of the original logo is 4 square inches, what is the area of the logo that will be used on the business cards?

Hi, can anyone show me how to do this problem? 100 points for this. in advance

The radius of the circle below intersects the unit circle at (3/5,4/5). what is the approximate value of theta? 0.6 radians 1.0 radians 36.9 degrees 53.1 degrees