Find the length of side BC and the measure of angle C in triangle ABC if c=7 b=15 m

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 the midpoint m of z1=(8+5i) and z2=(12+3i)

Divide. write in the simplest form. 4 1/6 divided by 10