The surface area of the prism is 298 square feet. Find the value of x

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 values of y: 3y^3(y^2+ 2/3y)=0

If cos(θ)=2853 with θin q iv, what is sin(θ)?