Math
posted by Holly
Please help.
51. Solve:
125=(x3)/0.3^3
a.7
b.14
c.15
d.9
53. 49x2 = 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.

Henry
51. X^3/0.3^3 = 125
0.3^3X^3 = 125
X^3 = 125/0.3^3
X^3 = 5^3/0.3^3
X = 5/0.3
X = 16.66666667.
67. e^3x = 8
3xLne = Ln8
3x*1 = Ln8
X = Ln8/3.
68. 1/e^x = 7
e^x = 1/7
x*Ln e = Ln 1/7
x*1 = Ln 1/7
X = Ln 1/7.
69. 3e2x+2 = 50
6ex = 48
X = 48/6e = 8/e = 2.943
70. Ln x = 1
Ln x = 1
X = e^1 = e = 2.7182.
78. Increase = 9600080,000 = $16,000
%Increase = (16000/80000)*100%=20%/yr.
V = 80000(1+0.2)^3 = $138,240. 
Anonymous
16 12 10 9 6 6
farklý ýký sayýlarýn toplam sonuclarý

x=4
w=2
y=1
z=3
u=0
f=2
g=1
h=2
k=(3)koken
ý=1
j=1
m=1
s=0
t=0
h=o
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