-What could be concluded if the relative frequency of an event is equal to 0?

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

Which value would be a solution for x in the inequality 47-4x< 7