Exponents and Powers

58. In the number 75, the base and exponent are

  • (A) 7, 7
  • (B) 5, 7
  • (C) 7, 5
  • (D) 5, 7

57. What is the value of a0?

  • (A) 1
  • (B) 2
  • (C) 3
  • (D) 0

56. What is the value of 01?

  • (A) 0
  • (B) 1
  • (C) –1
  • (D) Undefined

55. What is the value of 55891?

  • (A) 1
  • (B) 0
  • (C) 5589
  • (D) Undefined

54. What is the value of 01 × 10?

  • (A) 1
  • (B) 2
  • (C) 3
  • (D) 0

53. What is the value of 10 + 20 + 30?

  • (A) 1
  • (B) 2
  • (C) 3
  • (D) 0

52. What is the value of (–1)an even number?

  • (A) 1
  • (B) 2
  • (C) –1
  • (D) 0

51. What is the value of (–1)an odd number?

  • (A) 1
  • (B) 2
  • (C) –1
  • (D) 0

50. The standard form of the number 12345 is

  • (A) 1234.5 × 101
  • (B) 123.45 × 102
  • (C) 12.345 × 103
  • (D) 1.2345 × 104

49. Which of the following is equal to (4 + 5 + 6)0?

  • (A) 40 + 50 + 60
  • (B) 40 + 50
  • (C) 40
  • (D) 50 + 60

48. Which of the following is equal to 50 × 250 × 1250?

  • (A) (50)6
  • (B) (5)6
  • (C) (25)6
  • (D) (56)0

47. Square of (−3/4) is

  • (A) −3/4
  • (B) −9/16
  • (C) 9/16
  • (D) 3/4

46. Square of −(5/4) is

  • (A) −5/4
  • (B) −25/16
  • (C) 25/16
  • (D) 5/4

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