Write the vector in the form ai bj 9 8 9i 8j 9i 8j 8i 9j

Write the vector in the form ai + bj. (9, 8) -9i + 8j 9i + 8j 8i + 9j 8i - 9j Find the area of triangle ABC with the given parts. Round to the nearest tenth when necessary. b = 15.4 ft A = 32 degree 30 C= 107 degree 10 89.1 ft^2 193.2 ft^2 94.1 ft^2 188.2 ft^2 a = 11.7 cm b = 12.2 cm c = 16.8 cm 77 cm^2 74 cm^2 71 cm^2 80 cm^2 A = 23 degree degree 40 b = 15.4 m c = 9.3 m 14.4 m^2 57.4 m^2 59.4 m^2 28.7 m^2 Find the angle between the pair of vectors to the nearest tenth of a degree. 3i + 7j, -3i + 5j 86.1 degree 54.2 degree 172.2 degree 55.2 degree Find the indicated vector. Let a = 3i, b = i + j. Find 6a - b. 17i - j 11i + j i - 17j 17i - 6j Find the component form of the indicated vector. Let u = 6,4, v = 7, -8. Find 9u + 2v. 117, -8 40, 52 90, -2 68, 20 Let u = -2,3, v = -6,4. Find 4u + 5v. 22, -8 -32, 28 -38, 32 -38, 7 Find the missing parts of the triangle. Round to the nearest tenth when necessary or to the nearest minute as appropriate. a =27ft b = 39 ft c = 43 ft No triangle satisfies the given conditions. A = 38.1 degree, B = 62.9 degree, C = 79\' degree A = 62 9 degree, B = 38.1 degree, C = 79 degree A = 38.1 degree, B = 31.5 degree, C = 110.4 degree

Solution

7).

point is (-9,8)

so representation is -9 +8i

please post other questons separately