Question: I really need help I've been stuck on these for three days 9. If DF = 42, find DE. 7x + 1 4x - 3

I really need help I've been stuck on these for three days

9. If DF = 42, find DE. 7x + 1 4x - 3 D E 11. If S is the midpoint of RT, RS = 5x + 17, and ST = 8x - 31, find RS.14. Find the coordinates of the midpoint Of HK if H(-1, 2) and K(-7, -4). 16. Find the coordinates of Z if Y is the midpo of XZ, X(-10, 9), and Y(-4, 8).17, If MZDEF = 117', find the value of x. D (12r + 1) (5x - 3) F 19. If KM bisects L.JKL, mLJKL = 92', and mZMKL = (5x + 1)", find the value of x. K M21. Which diagram(s) show adjacent angles? 22. Which diagram(s) show vertical angles? 23. Which diagram (s) show complementary angles? 24/ Which diagram(s) show supplementary angles? 25. Which diagram(s) show a linear pair?27 Solve for x. (41 + 7) (2* + 5 )' 29 41 and 42 form a linear pair. If m41 = (18.x - 1)' and m42 = (23x + 17). find m42.31 If SV A RT. mLRSU = (17x - 3), and mLUST = (6.x - 1), find each missing measure. U T S m ZRSU = R m LUST = W mZWSV = mZVSU =

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