22) The base of a lampshade is circular. The circumference of the base is 3 times the radius increased by 4.25 inches.
Find the radius of the circular base. Round your answer to the nearest tenth.

Respuesta :

Answer:

~1.29 inches

Step-by-step explanation:

C = 2πr

C = 3r + 4.25

2πr = 3r + 4.25

2πr - 3r = 4.25

r(2π-3) = 4.25

r = 4.25/(2π-3) ≈ 1.29