There are 5 people on a elevator. Together they weigh 925.98lbs. Find the average weight.

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

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 dy/dx using implicit differentiation ln(20+e^xy)=y