Determine if x-5 is a factor of 2x^3-4x^2-7x-10

Which ratio is equivalent to 10: 85

Abcd is a parallelogram. the diagram is not drawn to scale. if 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¯¯¯¯¯¯¯¯)?