The circumference of a circle is 78π cm. find the diameter, the radius, and the length of an arc of 140°. a. 156 cm; 39 cm; 160π cm b. 39 cm; 78 cm; 15.2π cm c. 78 cm; 156 cm; 15.2π cm d. 78 cm; 39 cm; 30.3π cm

Three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder ( ! : ”0 )

How do i do this? i don’t understand

Which of these statements is correct? the system of linear equations 6x - 5y = 8 and 12x - 10y = 16 has no solution. the system of linear equations 7x + 2y = 6 and 14x + 4y = 16 has an infinite number of solutions. the system of linear equations 8x - 3y = 10 and 16x - 6y = 22 has no solution. the system of linear equations 9x + 6y = 14 and 18x + 12y = 26 has an infinite number of solutions.