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Solving Equations using Properties of Logarithms Answers

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Which statement is true about the potential solution x = –5?

A
This number is not a true solution because it is negative.
B
This number is not a true solution because –5x – 18 is negative.
C
This number is not a true solution because 2 – x is negative.
D
This number is a true solution of the original equation.
123
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Which equation can you solve to find the potential solutions to the equation log2x + log2(x – 6) = 4?

A
x2 – 6x – 4 = 0
B
x2 – 6x – 8 = 0
C
x2 – 6x – 16 = 0
124

What is the solution to log7(x – 4) = log7(4x + 5) ?

A
x = –3
B
x = –2
C
x = –1
D
x = 0
E
There is no solution.
125

Question text not available

Answer:

Insufficient information

126

Which of the following did you include in your response?

A
The bases of the logarithms are not the same.
B
The one-to-one property does not apply when the bases are not the same.
C
The change of base formula should have been used to write the logarithms with the same base.
127

ln e2x =

A
0
B
2 + x
C
2e
D
2x
128

log520 =

A
0.537
B
1.301
C
1.861
129

celebratingcondemning

A
celebrating
B
condemning
130

neutron star black hole white dwarf

A
neutron star
B
black hole
C
white dwarf
131

Use the power property to rewrite log3x9.

A
Option
B
Option
C
Option
D
Option
132

log749 = [___]

Answer:

2

133

log3 a 3 = [___]

Answer:

3log3 a

134

Question text not available

Answer not available
135

log(49) = 2log(7)

A
1
B
2
C
3
136

protostar:

A
Stage 1
B
Stage 2
C
Stage 3
D
Stage 4
E
Stage 5
137

core✔ radiation zoneconvection zone

A
core
B
✔ radiation zone
C
convection zone
138

✔ photospherechromospherecorona

A
✔ photosphere
B
chromosphere
C
corona
139

Which statement is true about the potential solutions to log3(2x4 + 8x3) – 3log3x = 2log3x?solutions.

A
Both are extraneous
B
Only x = –2 is an extraneous solution.
C
Only x = 4 is an extraneous solution.
D
Neither solution is extraneous.
140

[___] x2 − 15 = 2x

Answer:

Addition Property of Equality

141

The solution to the equation log2x + log2(x – 6) = 4 is x = .

Answer:

8

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