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12. Find the distance between (9, -3) and (-1, 3) (A) (B) 10 (C) 2V/15 (D) 0 (E) none of these m 1+ x 13. Simplify: (A) mn + 2mp (B) m(n + 2p) (C) m+ 2x n + 2p+2x 2x n+ 2p (D) m(n + 2p) 2 p + np + 2x + nx (E) none of these 14. Solve for B: 2BTD + 127 = 38 2BTD - 12TD = 6 (A) 33 20 (B) 4 (C) 3 (D) 11 (E) none of these 15. Solve for M PO ON PN (A) N (B) P (C o N (D) OP (E) none of these 16. Simplify: 4- V20 2-2V5 (A) 3- V5 (B) 2 (C) 3 +2V/5 4 4 (D) 1 (E) none of these17. Find C (A) 9.27 (B) - 3.75 (C) 8 10 (D) 3.75 (E) none of these 1 120 18. Simplify: x6-3,, 3b b x3 vb+3 (A) x 3 46-3 46-3 3b-9 3b (B) x b vb+3 (C) xy 62 - 9 1 62 (D) X - 3+20 3 -3+2b (E) none of these 19. Solve for r: atb 2c = C 2 bc2 2 b (A) b2 + ab- 2c2 2 bc2 (B) ab- 1 (C) ab+ b2 - 2c2 2 b (D) - 2+ab+ 62 (E) none of these 20. Write 5 R - 7 U in polar form. (A) 8.60 2 54.46 (B) 8.60 2 125.54 (C) 8.60 2 216.540 (D) 8.60 2 305.540 (E) none of these