Se desea realizar una perforación de 0.3125 pulgadas de diámetro, el grosor de la broca debe de usarse es??

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¯¯¯¯¯¯¯¯)?

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Awoman won a 4000-m race with a time of 12.089 min. what was her rate?