A figure was created using a triangle with the base of 17cm and the base of 21cm and semicircle with a diameter of 21cm.

Which measurement is closest to the area of the figure in square centimeters

A) 259.59 sq. cm

B) 351.59 sq. cm.

C) 451.59 sq. cm

D) 551.59 sq. cm

Determine the quotient of the following expression. (15n^2-27n) / 3

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 value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial