Tara's car accelerated from 10 miles per hour to 60 miles per hour in 12 seconds.

what is the approximate rate of change in the miles per hour that tara's car accelerated?
a) 4 miles per hour per second
b) 5 miles per hour per second
c) 18 miles per hour per second
d) 48 miles per hour per second

Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet.what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet