Wednesday
October 1, 2014

Homework Help: Math

Posted by Holly on Tuesday, May 21, 2013 at 1:29pm.

Please help.

51. Solve:
125=(x3)/0.3^-3

a.7
b.14
c.15
d.9

53. 49x-2 = 7Ö 7

a.-5/4
b.5/4
c.11/4
d.-11/4

60. Simplify:
2log^3 6 - log^3 4

a.3
b.6
c.4
d.2

61. Solve the equation:
logb (x^2 + 7) = 2/3logb 64

a.9
b.3
c. √23
d. ±3

62. Solve:
(The fifth root of x) divided by 9, is equal to 7

no multiple answers available.

66. ln 1/√e

a. -√e
b.-1/2
c.1/e
d.1/2

67. Solve:
e3x = 8

a. In 5/ In 8
b. 3 In 8/ In 3
c. In 8/ 3
d. In 3/ 8

68. Solve:

1/ex = 7

a. In^1/7
b. In 1/7
c. In^7
d. In 7

69. Solve:
3e2x + 2 = 50

a. In 8
b.In 0.25
c.In 14
d. 0.5In 16

70. Solve:
|ln x| = 1

no multiple answers available.

71. Determine if the sequence is geometric, arithmetic, both, or neither: 256, 64, 16, 4, ...

a. Geometric
b. Arithmetic
c. Both
d. Neither

72. Determine if the sequence is arithmetic, geometric, both, or neither:
1/12, 2/13, 3/13, 4/14, ...

a. Geometric
b. Arithmetic
c. Both
d. Neither

73. Find the first four terms of the sequence:
tn = 2n + 1

a. 3; 5; 7; 9
b. 1; 3; 5; 7
c. 9; 11; 13; 15
d. 15; 17; 19; 21

74. Find the next two terms using the pattern in the difference between terms for the sequence:
24, 23, 21, 17, 9, ...

a. -7, -39
b. -3, -15
c. -11, -37
d. -2, -13

75. Find the next two terms using the pattern in the difference between terms for the sequence:
1, 2, 6, 15, 31, ...

a. 63, 127
b. 72, 114
c. 56, 92
d. 44, 73

76. Find the arithmetic mean for the pair of numbers:
2.3, 9.1

a. 10.47
b. 6.3
c. 5.7
d. 8.4

77. Choose a formula for the nth term of the sequence:
a^2/2, a^4/4, a^6/8, ...

a. a^2n/2^n
b. a^2n/2n
c. a^2n/2+n
d.2^n/a

78. A house purchased last year for $80,000 is now worth $96,000. Assuming that the value of the house continues to appreciate (increase) at the same rate each year, find the value 2 years from now.

no multiple answers available.

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