Rút gọn biểu thức cosa +cos3a/cosa

The line y = x + passes through (−3, 7) and is parallel to y = 4x − 1.

You have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint? you have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint?

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4