previously, 2% of mothers smoked more than 21 cigarettes during their pregnancy. an obstetrician believes that the percentage of mothers who smoke 21 cigarettes or more is less than 2% today. she randomly selects 160 pregnant mothers and finds that 2 of them smoked 21 or more cigarettes during pregnancy.

Polygons efgh and e′f′g′h′ are shown on the coordinate grid: what set of transformations is performed on efgh to form e′f′g′h′? a. a translation 1 unit to the left followed by a 90-degree counterclockwise rotation about the origin b. a translation 1 unit to the right followed by a 90-degree counterclockwise rotation about the origin c. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the right d. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the left

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

If you apply the below transformations to the square root parent function, f(x) = vx, what is the equation of the new function? • shift 12 units right. • shift seven units down.