Trigonometry quiz 7
Dr Richards
week_7__math_quizz_question.docxQUESTION 1
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A. |
4,271,601 |
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B. |
5,651,882 |
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C. |
4,700,000 |
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D. |
5,130,000 |
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QUESTION 2
Solve: ln(3x+5)+ln(x)=ln2
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A. |
1/3 |
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B. |
3/5, 2 |
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C. |
-1/3, -2 |
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D. |
5/3, -2 |
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QUESTION 3
Write the equation log5125 = 3 in its equivalent exponential form.
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A. |
1253 = 5 |
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B. |
53 = 125 |
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C. |
5125 = 3 |
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D. |
35 = 125
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QUESTION 4
Solve: ln(9x+5)=ln(6x+7)
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A. |
2 |
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B. |
0 |
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C. |
No solution |
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D. |
2/3
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QUESTION 5
The following expression is equivalent to which of the following? logx5
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A. |
5+logx |
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B. |
log5x |
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C. |
logx+5 |
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D. |
5logx
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QUESTION 6
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A. |
217 |
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B. |
394 |
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C. |
494 |
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D. |
520 |
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QUESTION 7
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A. |
7.611 |
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B. |
8.166 |
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C. |
16.425 |
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D. |
16.445 |
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QUESTION 8
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A. |
2 |
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B. |
-4 |
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C. |
4 |
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D. |
-2 |
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QUESTION 9
Write the equation 6x = 8 in its equivalent logarithmic form.
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A. |
log86 = x |
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B. |
log6 x = 8 |
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C. |
log6 8 = -x |
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D. |
log6 8 = x |
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QUESTION 10
Approximate the number using a calculator. Round your answer to three decimal places. 41.9
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A. |
14.229 |
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B. |
13.032 |
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C. |
13.929 |
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D. |
7.600 |
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QUESTION 11
Solve: exe2x = e
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A. |
1/3 |
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B. |
0 |
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C. |
1 |
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D. |
-1 |
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QUESTION 12
Which of the following is log2 x equivalent to:
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A. |
log x – log 2 |
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B. |
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C. |
ln(2x) |
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D. |
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QUESTION 13
Write the equation log4 x = 2 in its equivalent exponential form.
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A. |
4x = 2 |
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B. |
x2 = 4 |
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C. |
42 = x |
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D. |
24 = x |
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QUESTION 14
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A. |
1 |
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B. |
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C. |
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D. |
0
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QUESTION 15
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A. |
3/2 |
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B. |
1 |
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C. |
-3 |
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D. |
-1.5 |
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QUESTION 16
Approximate the number using a calculator. Round your answer to three decimal places. 2
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A. |
16.000 |
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B. |
5.000 |
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C. |
4.472 |
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D. |
4.711 |
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QUESTION 17
Solve: ln(3x-2)=ln(-6x+7)
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A. |
-3 |
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B. |
1/3 |
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C. |
1 |
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D. |
3/2 |
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QUESTION 18
Solve: log(x+1)-log5=0
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A. |
No Solution |
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B. |
-1 |
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C. |
4 |
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D. |
-6
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QUESTION 19
The following expression is equivalent to which of the following?logx+log(x-1)
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A. |
logx(x-1) |
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B. |
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C. |
log(x2-1) |
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D. |
log(2x-1)
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QUESTION 20
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A. |
log3 |
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B. |
log(x+1) |
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C. |
log(x2+2)-log(x-1) |
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D. |
2log(x+2)+log(x-1) |
