Algebra 2 Semester 2 Practice Final Summer 13

ID: A
82. ANS:
3.2459
REF: 8-5 Exponential and Logarithmic Equations
OBJ: 8-5.2 Solving Logarithmic Equations
TOP: 8-5 Example 5
KEY: exponential equation | Change of Base Formula
83. ANS:
ln 27c 3
REF: 8-6 Natural Logarithms
TOP: 8-6 Example 1
84. ANS:
0.02 and –0.02
OBJ: 8-6.1 Natural Logarithms
KEY: simplifying a natural logarithm | properties of logarithms
REF: 7-1 Roots and Radical Expressions OBJ: 7-1.1 Roots and Radical Expressions
TOP: 7-1 Example 1
KEY: square root | real roots
85. ANS:
− 5 7
REF: 7-1 Roots and Radical Expressions OBJ: 7-1.1 Roots and Radical Expressions
TOP: 7-1 Example 2
KEY: real roots
86. ANS:
2 3
REF: 7-2 Multiplying and Dividing Radical Expressions OBJ: 7-2.1 Multiplying Radical Expressions
TOP: 7-2 Example 1
KEY: multiplying radical expressions | simplifying a radical expression
87. ANS:
x 7 − 49 x
REF: 7-2 Multiplying and Dividing Radical Expressions OBJ: 7-2.1 Multiplying Radical Expressions
TOP: 7-2 Example 3
KEY: multiplying radical expressions | simplifying a radical expression
88. ANS:
3
3 3
REF: 7-2 Multiplying and Dividing Radical Expressions OBJ: 7-2.2 Dividing Radical Expressions
TOP: 7-2 Example 4
KEY: simplifying a radical expression | divide radical expressions | rationalize the denominator
89. ANS:
3x 8 5x
REF: 7-2 Multiplying and Dividing Radical Expressions OBJ: 7-2.2 Dividing Radical Expressions
TOP: 7-2 Example 4
KEY: simplifying a radical expression | divide radical expressions | rationalize the denominator
14