SET 5 Skill Review Calculate the area of a circle with radius 6. Use the sine law 6.5 m. to solve for the By how much does the surface area of unknown sides. a sphere increase when the radius is 1 Solve for x in each doubled? of the following. By how much does the volume of a sphere a42 = 7x increase when the radius is doubled? (b) 30 = x/5 (49* 56' Find all unknown angles and side lengths. (c) 12 = x sin 30 B 83 m C dif8 = 2x - 124 G 22 m Solve for x in each of the following. 65 (a) F = kx (d) b = d cos x 33' (b) G = hk + x (e) a = bc + x2 29 cm B (c) a = bx cose (1) T - 2n /1 C 17 km S 54 9 Use the quadratic equation to find the roots of the function. 4x3+ 15x + 13 = 0 10. Find the mean, median, and mode of each Use the cosine law R data set. to solve for the (a) 25, 38, 55, 58, 60, 61, 61, 65, 70, 74, 74, unknown side. 10 m 74. 78, 79, 82, 85, 90 40' (b) 13, 14, 16, 17, 18, 20, 20, 22, 26, 30, 31, 20 m 32, 32, 35