A vertical cross section of a cooling tower is a portion of a hyperbola, as shown in the diagram below. The standard form of the equation of the hyperbolic cross section is 
where x and y are measured in feet. The horizontal cross sections of the tower are circles. 
What is the smallest radius of a horizontal cross section? Round to the nearest foot.
Definitions:
Newborn
A term used to describe an infant in the first few hours to weeks of life, typically up to 28 days old.
Prematurity
Birth occurring prior to the completion of 37 weeks gestation.
Congenital
A condition existing at the time of birth.
Birth
The process of giving life whereby an offspring is expelled from the body of its mother.
Q3: Use the definition of a hyperbola to
Q11: Find all roots of the equation. Write
Q14: Use interval notation to express the solution
Q16: The first major component of the Hayes-Flower
Q18: According to Ehri's Phases of Development of
Q21: Two radio transmitters are positioned along the
Q21: Research has not only demonstrated that reading
Q34: Determine the property of real numbers or
Q51: Seven cards are chosen at random from
Q88: The function <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8727/.jpg" alt="The function