AccelePrep for the ACT Test 2nd Edition Student Text

124 • S URGE TO S UCCESS ! M ATH T EST P REP

9. Which of the following is the complete solution set for x 2 4 12 ? A. {–8,4} B. {–4,8} C. {0,8} D. {4,8} E. {6,8} 10.  –Š‡ ϐ‹”•– †ƒ› ƒˆ–‡” „‡‹‰ ‰‹˜‡ ƒ ƒ••‹‰‡–ǡ ƒ •–—†‡– ”‡ƒ† 2 1 –Š‡ —„‡” ‘ˆ ’ƒ‰‡• ƒ••‹‰‡†ǡ ƒ† ‘ –Š‡ •‡…‘† †ƒ›ǡ –Š‡ •–—†‡– ”‡ƒ† ͵ ‘”‡ ’ƒ‰‡•Ǥ ˆ –Š‡ •–—†‡– •–‹ŽŽ Šƒ• ͸ ƒ††‹–‹‘ƒŽ ’ƒ‰‡• –‘ ”‡ƒ†ǡ Š‘™ ƒ› ’ƒ‰‡• ™‡”‡ ƒ••‹‰‡†ǫ F. 15 G. 18 H. 24 Ǥ ͵Ͳ Ǥ ͵͸ 11. ˆ x = 6 + y ƒ† Ͷ x α ͵ Ȃ ʹ y ǡ ™Šƒ– ‹• –Š‡ ˜ƒŽ—‡ ‘ˆ x ? A. 4 B. 3 11 C. 2 5 D. 3 2 E. 2 7 12. Šƒ– ‹• –Š‡ ’‡”‹‡–‡” ‘ˆ –Š‡ ”‡…–ƒ‰Ž‡ „‡Ž‘™ǫ

13. ˆ n •—„–”ƒ…–‡† ˆ”‘

2 13 ‹• ‡“—ƒŽ –‘

n †‹˜‹†‡† „›

13 2 ǡ ™Šƒ– ‹• –Š‡ ˜ƒŽ—‡ ‘ˆ

n ?

A. 3 2

B. 15 13 C. 1 D. 11 13 E. 26 14. Šƒ– ‹• –Š‡ ƒ˜‡”ƒ‰‡ ȋƒ”‹–Š‡–‹…‡ƒȌ ‘ˆ ƒŽŽ ‹–‡‰‡”• ͸ –Š”‘—‰Š ͳͷ ȋ‹…Ž—†‹‰ ͸ ƒ† ͳͷȌǫ F. 6 G. 9 H. 10.5 J. 11 K. 21 15. ƒ…Š‹‡ ’”‘†—…‡• ͳͷ —‹–• ’‡” ‹—–‡ǡ ƒ† ƒ…Š‹‡ ’”‘†—…‡• ͳʹ —‹–• ’‡” ‹—–‡Ǥ  ‘‡ Š‘—”ǡ ƒ…Š‹‡ ™‹ŽŽ ’”‘†—…‡ Š‘™ ƒ› ‘”‡ —‹–• –Šƒ ƒ…Š‹‡ ǫ A. 90 B. 180 C. 240 D. 270 Ǥ ͵͸Ͳ

F. a 10 6 G. a 10 3 H. a 6 3 J. a 5 6 K. a 5 3