Elie a pris en photo un Tableau qui illustre un ancient Marche arabe. Il souhaitte connectre la longueur De la diagonal pusique : AB=45 et AC=55​

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¯¯¯¯¯¯¯¯)?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Find the multiplicative inverse of 8-12i