Are polynomials determined to be a trinomial, binomial, etc. based on the number of operations or the terms?

for example, would x²y³ + 7y - 35 be determined as a binomial because of the number of operation signs or a trinomial based on the 3 terms?

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3

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