The sides of abc are 30 units, 40 units, and 60 units in length. if the corresponding sides of xyz are r times as long as the sides of abc, which expression gives the perimeter of xyz? 130r 3 x 130r

The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %