Meiko is hanging a picture-collage on her wall. The dimensions of the collage are shown in the diagram. She plans to cover the collage with smaller pictures that have the same shape as the collage. If the base of each small picture is 4.5 inches and the height is 3.5 inches, how many small pictures will fit within the college?

What expression is equivalent to (2x-1)(x-3)?

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota