Franco constructed the objects below using toothpicks
write two different rules that relate the figure number to the number of toothpicks in each figure, explain

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¯¯¯¯¯¯¯¯)?

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.