Which series of transformations shows that triangle a is congruent to triangle b?

a.
reflect triangle a over the x-axis, translate it 4 units to the right, and reflect it over the y-axis.

b.
reflect triangle a over the y-axis, translate it 5 units to the right, and rotate it 90° counterclockwise about the origin.

c.
reflect triangle a over the y-axis, rotate it 90° counterclockwise about the origin, and translate it 5 units to the right.

d.
reflect triangle a over the y-axis and translate it 2 units up.

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

Needmax recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.