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153. Find the sum of the rst ve terms of the geometric sequence 2, 8. 32. 128, ..": A. 743 ..": B. 243 ."". c. 682 D. 679 20. If 7 is zero of the polynomial 2x3 14::2 + x - 7, which of the following is TRUE? -::.: A. x 7 is a factor of the polynomial ._ '_: a. 3' is a factor of the polynomial -_': c. Pi7} = 0 .;'__; or x + 7 is a factor of the polynomial 21. Which of the following is not true about the arithmetic sequence 5, 3, 1, -1, -3. the common difference is -2 A. r_'- a. U2 = -3 c. to obtain a term, -2 must be added to the preceding term. D A a5=-5 EIZ. Which of the following is a geometric sequence? A. 1112, '12. ~12. .' B. 12. 25R. 13. 2712. .' c. 1. 2. 3. 5. B. .' D. 32. B. 2. H2. 23. Which of the following are the two geometric means between 7 and 56? .;_ 1 14 and 28 -. EL 15 and 30 .:_ c. 17 and 34 or 16 and 32 24. Which the sum of the rst 25 terms of the arithmetic sequence 17, 22, 27,32, ...? .J 1 1395 .J a 1925 .J a 1655 a 1155 31. Which of the following best describes an arithmetic sequence? A. A term is obtained by squaring the preceding term. B. A term is obtained by extra ding the square root of the precedlng term. C- A term is obtained by adding a constant number to the preceding term. -. ' D' A term is obtained by multiplying a constant number from the preceding term. 32. Which term of the arithmetic sequence 7. 10. 13. 16. is 304? A. 100th term __ a. 99th term c. 102ml term I:-. 10m term 33. Which of the following is the value of ksothatxZ isafactor of 2x27x + k? 1L 6 a. -12 . '. c. 12 D. -6 34. A car manufacturer determines that its prot. P in pesos. can be modeled by the function P(x) = 0.00125x4 + x 3, where x represents the number of cars sold. What is the prot of the manufacturer when 300 cars were sold? A. Php 101.25 .:'_ a. Php 10.125.29100 c. Php 3.DD0.000.00 n. Php masseuse 35. Which of the following is a root of at) =x3 + 2x2 +7x 10? A. 5 ' a. 10 c. 1 D. 2 36. Which of the following has a factor of x + 1? A. 3:25-1 _ a. X40-1 -:_' c. x1-2x+1 ' D. X21-1 25L A hall has 30 rows. Each successive row contains one additional seat. If the rst row has 25 seats, how many seats are in the hall? . ' n_ 1730 ._ f B. 1315 a: c 1135 a; a 1970 26. Which of the following is not a factor of x3 + 5x2 4x 20? A. xS a. xZ .-' c. x+2 .' D. n+5 27. How many possible rational roots are there in the polynomial f(x) = x3 5x2 - 7x + 4? 28. Which of the following equations in factored form is represented by the roots 0 multiplicity 2, 3, and 6? . L w+mm+m=o m xm+3nxm2=n . c. x2{x3Hx61=D n. xtx3)2{x6}=D 29. Which is the common difference in the sequence: -4, 3. 10. 17. ...? .. '. A. -1 a. 1 c. 3' o. J 30. The rst term of a geometric sequence is 5, and the second term is 10. what is the fth term? . _ A. 640 a. 320 c. 80 o. 160