Unit 7 test version 2
- 1. Name: Jorge Salay Period: 5 Unit 7 Test Write each answer in simplified exponential form. 1. 6813 * 6819 = 6832 2. (78)4 = 732 4 2 24 1 = 3. 9 4. 16-4 = 94 164 3 1 1 13 = 5. 8-9 = 6. 3 89 3 33 83x 4117 2 = 4115 7. (8x)3 = 8. 41 514 2330 6 = 58 10 3 9. (23 ) = 10. 5 11. (ab)2= 12. (45)7 = 2 Ab 2 435 13. (195)0 = 14. 108 * 1024 = 190 1032 0 4 324 = 40150 = 35 15. 15 19 16. 3 17. 8m2n2 * 2m3n = 16m5n3 18. 4p4r2 * 2pr5 = 8p5r7 19. 3xy6 * 10xy6 = 30x2y12 18m3 n 3m1 20. = 6m 2 n 4 N3 24 j 3 k 6 21. 5 4 = 4j k J2k3 14c 3d 3 7c2 22. = 2cd 4 D1 Write in scientific notation. 3.5*109 4.72*10-5
- 2. Name: Jorge Salay Period: 5 23. 35,000,000= 24. 0.0000472= 25. 1,780,000= 1.78*107 26. 0.0000000051= 5.1*109 Write in standard notation. 27. 2.45 * 108= 245000000. 28. 9.9 * 10-5= .000099 29. 4x3 * 3xy2 * 2xy2 is equivalent to: D a. 9x3y4 b. 9x5y4 c. 24x3y4 d. 24x5y4 e. 24x5y6 30. 4a3 * 5a8 = ? D a. 9a5 b. 9a11 c. 9a24 d. 20a11 e. 20a24 31. Which of the following numbers is C the least in value? a. 0.02 * 104 b. 0.2 * 103 c. 2.0 * 10-2 d. 20.0 * 102 e. 0.002 * 105 32. Which of the following operations will E produce the largest result when substituted for the blank in the expression: 5 _______ 2 a. averaged with b. divided by c. minus d. plus e. multiplied by
- 3. Name: Jorge Salay Period: 5 33. A group of friends were comparing C the number of cards in their baseball card collection. The number of cards is indicated in the table below. Friend A B C D E Number of Cards 30 110 70 200 70 What is the average number of baseball cards in the collection of the 5 friends? a. 70 b. 82 c. 96 d. 102.5 e. 120 34. As part of a school report on the C cost of gasoline, Raquel wants to find the average cost of purchasing a gallon of regular unleaded gasoline from local gas stations. She surveys 4 stations and finds the cost per gallon of regular unleaded gas from he 4 stations to be $2.45, $2.50, $2.49, and $2.56, respectively. Using this data, what is the average cost of purchasing one gallon of regular unleaded gasoline from these 4 gas stations? a. $2.55 b. $2.53 c. $2.50 d. $2.49 e. $2.45