preCALCULUS
functions
intro: logs
math
hands
CH 02 SEC 06 SELF-QUIZ
1. select expression/s equivalent to:
log
1
10000
A. −4
B. log10
1
10000
C. the exponent needed on 10 to get
1
10000
D. none of these
2. select expression/s equivalent to:
log3
A. log3
1
81
1
27
+ log3 (3)
B. the exponent needed on
1
27
to get 3
C. −3
D. none of these
3. select expression/s equivalent to:
ln (225)
A. loge (225)
B. the exponent needed on e to get 225
C. approx. 5.42
D. 225
E. none of these
4. select expression/s equivalent to:
log5
A. the exponent needed on 5 to get
1
5
1
5
B. −1
C. log5 (5) + log5
D. none of these
pg. 1
1
25
c
2007-2011
MathHands.com v.110
preCALCULUS
functions
intro: logs
math
hands
CH 02 SEC 06 SELF-QUIZ
5. select expression/s equivalent to:
log7
1
49
log5
1
25
A. −2
B. log7 (1) + log7
1
49
C. the exponent needed on 7 to get
1
49
D. none of these
6. select expression/s equivalent to:
A. −2
B. log5
1
125
+ log5 (5)
C. the exponent needed on 5 to get
1
25
D. none of these
7. select expression/s equivalent to:
log (44)
A. 44
B. log10 (44)
C. the exponent needed on 10 to get 44
D. approx. 1.64
E. none of these
8. consider:
log2 (−1)
the expression is:
A. a REAL number
B. NOT a REAL number
9. select expression/s equivalent to:
log3 (81)
A. 4
pg. 2
c
2007-2011
MathHands.com v.110
preCALCULUS
functions
intro: logs
math
hands
CH 02 SEC 06 SELF-QUIZ
B. log3 (27) + log3 (3)
C. the exponent needed on 3 to get 81
D. none of these
10. select expression/s equivalent to:
log5
A. the exponent needed on 5 to get
1
25
1
25
B. −2
C. log5
1
5
+ log5
1
5
D. none of these
11. consider:
log5 (−2)
the expression is:
A. a REAL number
B. NOT a REAL number
12. consider:
log7 (1)
the expression is:
A. a REAL number
B. NOT a REAL number
13. select expression/s equivalent to:
log3
1
27
A. −3
B. log3
1
243
+ log3 (9)
C. the exponent needed on
1
27
to get 3
D. none of these
pg. 3
c
2007-2011
MathHands.com v.110
preCALCULUS
functions
intro: logs
math
hands
CH 02 SEC 06 SELF-QUIZ
14. select expression/s equivalent to:
log3 (9)
A. log3 (81) + log3
1
9
B. the exponent needed on 9 to get 3
C. 2
D. none of these
15. select expression/s equivalent to:
log7 (343)
A. log7 (1) + log7 (343)
B. the exponent needed on 343 to get 7
C. 3
D. none of these
16. select expression/s equivalent to:
log5 (625)
A. 4
B. log5 (125) + log5 (5)
C. the exponent needed on 625 to get 5
D. none of these
17. select expression/s equivalent to:
log7
A. log7 (1) + log7
1
49
B. the exponent needed on
1
49
1
49
to get 7
C. −2
D. none of these
18. select expression/s equivalent to:
log2 (16)
pg. 4
c
2007-2011
MathHands.com v.110
preCALCULUS
math
hands
CH 02 SEC 06 SELF-QUIZ
functions
intro: logs
A. 4
1
2
B. log2 (32) + log2
C. the exponent needed on 16 to get 2
D. none of these
19. select expression/s equivalent to:
log3 (3)
A. 1
B. log3 (9) + log3
1
3
C. the exponent needed on 3 to get 3
D. none of these
20. select expression/s equivalent to:
log7 (7)
A. 1
B. log7 (1) + log7 (7)
C. the exponent needed on 7 to get 7
D. none of these
pg. 5
c
2007-2011
MathHands.com v.110