Use the crossing-graphs method to solve the given equation. (Round your answer to two decimal places.) 18 = X 2+ 3* X = XUse the crossing-graphs method to solve the given equation. (Round your answer to two decimal places.) X2 x2+2= x548 The following exercise poses a question that can be answered by solving an equation. Give the appropriate equation. Note that you are not asked to solve the equation. The population of a certain city is given by N = 3.3 % 1.055, where N is measured in millions and & is time, measured in years. The time required for the population to reach & million is the solution of an equatien. Find that equation. X An ideal diameter d, in fe h s d=so(5) " A . of a ship's propeller is given by the formula Here h is the horsepower of the engine driving the propeller, and r is the (maximum) revolutions per minute of the propeller. actual diameter was 18.2 feet. Round your answer to two decimal places.) fes x * (a) The Victory Ships produced in World War II had an engine that produced 6000 horsepower and rotated the propeller at 100 revolutions per minute. Accerding to the formula, what should have been the diameter of their propellers? (The (b) If a ship's engine has a horsepower of 8100 turning a propeller with a diameter of 20 feet, what should be the (maximum) revolutions per minute of the propeller? (Round your answer to two decimal places.) 92.31 rpm