Trigonometry quiz 7

Trigonometry quiz 7

QUESTION 1

A. 4,271,601

B. 5,651,882

C. 4,700,000

D. 5,130,000

QUESTION 2 Solve: ln(3x+5)+ln(x)=ln2

A. 1/3

B. 3/5, 2

C. -1/3, -2

D. 5/3, -2

QUESTION 3 Write the equation log5125 = 3 in its equivalent exponential form.

A. 1253 = 5

B. 53 = 125

C. 5125 = 3

D. 35 = 125

QUESTION 4 Solve: ln(9x+5)=ln(6x+7)

A. 2

B. 0

C. No solution

D. 2/3

QUESTION 5 The following expression is equivalent to which of the following? logx5

A. 5+logx

B. log5x

C. logx+5

D. 5logx

QUESTION 6 1.

A. 217

B. 394

C. 494

D. 520

QUESTION 7

A. 7.611

B. 8.166

C. 16.425

D. 16.445

QUESTION 8

A. 2

B. -4

C. 4

D. -2

QUESTION 9 Write the equation 6x = 8 in its equivalent logarithmic form.

A. log86 = x

B. log6 x = 8

C. log6 8 = -x

D. log6 8 = x

QUESTION 10 Approximate the number using a calculator. Round your answer to three decimal places. 41.9

A. 14.229

B. 13.032

C. 13.929

D. 7.600

QUESTION 11 Solve: exe2x = e

A. 1/3

B. 0

C. 1

D. -1

QUESTION 12 Which of the following is log2 x equivalent to:

A. log x – log 2

B.

C. ln(2x)

D.

QUESTION 13 Write the equation log4 x = 2 in its equivalent exponential form.

A. 4x = 2

B. x2 = 4

C. 42 = x

D. 24 = x

QUESTION 14

A. 1

B.

C.

D. 0

QUESTION 15

A. 3/2

B. 1

C. -3

D. -1.5

QUESTION 16 Approximate the number using a calculator. Round your answer to three decimal places. 2

A. 16.000

B. 5.000

C. 4.472

D. 4.711

QUESTION 17 Solve: ln(3x-2)=ln(-6x+7)

A. -3

B. 1/3

C. 1

D. 3/2

QUESTION 18 Solve: log(x+1)-log5=0

A. No Solution

B. -1

C. 4

D. -6

QUESTION 19 The following expression is equivalent to which of the following?logx+log(x-1)

A. logx(x-1)

B.

C. log(x2-1)

D. log(2x-1)

QUESTION 20

A. log3

B. log(x+1)

C. log(x2+2)-log(x-1)

D. 2log(x+2)+log(x-1)

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