A bridge has a length of 1,000 ft., a width of 300 ft., and a height of 50 ft. The bridge has four lanes of equivalent width that are each 75 ft. wide. If the road commission wants to increase the number of lanes to six lanes, what is the new width of the bridge?
350 ft.
400 ft.
450 ft.
500 ft.

Rearrange the formula c^2 = a^2 + b^2 for b

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?