Find a formula for f^(101)(x) if f(x)=1/(10x-1)

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Which strategy is used by public health to reduce the incidence of food poisoning?

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