Please accurate answer with complete solution and explanation. It has the key answers already but please do give an accurate solution and explanation. Thank you!

FORMATIVE ASSESSMENT 1 (Critical & Creative Thinker, Lifelong Learner, SDG # 9) Hopefully you have understood the lesson. Answer this formative assessment and try to unlock difficulties. Choose the letter of the correct answer and write it on the blank before the number. This is non-graded but still use this as an avenue of practice and mastery of the concepts. Key answers are given after this formative assessment. 1. Which is the 3" term if d,2 = 68 and r = 3? A. 14 C. 68 B. 11 D. 71 rty 2. Which formula will best define the sequence 2, 8, 14,...? A. a =-6+6n C.a =2+6n B. a, =4-6n D. a, = 6n-4 3. Which equation models a geometric sequence? A. a, =-6(6n)"-1 C.a, = 2(11)"- B. a, =4(1-n) D. a, =3n-5 4. The image shown in figure 1 shows how a certain bacterium grows in a petri dish. Which formula defines the growth of the bacteria in a certain time? A. d. = 3(4)" 8:: C. a, = (6)"- B. a, =3(2)"-1 D. a,, = 3(3)"- 8:8: 8:: :8:: :::: 5. Which summation notation satisfies the series -1 + 2 + 5 + 8 + 11+ ...for 10 terms and what is the sum? 10 Fig 1 A. > (3n-4):125 C. _ (3n-1) 1 -1 B. > -1(3)"-1;125 D. Z(-3n-4):125 1 -1 For numbers 6 -10, evaluate the following summation notation. 6. (2-4k) ? * -0 A. -3870 C. 1024 B. -4998 D.5118 7. 3n-4? A. 8 C. 23 B. 15 D.9 30 8. (47-5) 1-1 A. 1856 C. -1867 B. 908 D.1710 9 . S. A. 105 C. 10 B. -695 D. 82 10. (n' + 3) Answers n-0 1. A 6. B 2. D 7. B A. 128 C. 131 3. C 8. D B. 242 D.243 4. 9. C 10. A