- Submitted By: JoyceBanks
- Date Submitted: 03/30/2016 10:45 PM
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- Page: 34

MA 105 Week 7 Assignment 20/20 Correct Answers

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QUESTION 1

Evaluate the function at the indicated value of x. Round your result to three decimal places.

Function: f(x) = 0.5x Value: x = 1.7

-0.308

1.7

0.308

0.5

-1.7

QUESTION 2

Match the graph with its exponential function.

y = 2-x – 3

y = -2x + 3

y = 2x + 3

y = 2x – 3

y = -2x – 3

QUESTION 3

Select the graph of the function.

f(x) = 5x-1

QUESTION 4

Evaluate the function at the indicated value of x. Round your result to three decimal places.

Function: f(x) = 500e0.05x Value: x=17

1169.823

1369.823

1569.823

1269.823

1469.823

QUESTION 5

Use the One-to-One property to solve the equation for x.

e3x+5 = 36

x = –1/3

x2 = 6

x = -3

x = 1/3

x = 3

QUESTION 6

Write the logarithmic equation in exponential form.

log8 64 = 2

648 = 2

82 = 16

82 = 88

82 = 64

864 = 2

QUESTION 7

Write the logarithmic equation in exponential form.

log7 343 = 3

7343 = 2

73 = 77

73 = 343

73 = 14

3437 = 2

QUESTION 8

Write the exponential equation in logarithmic form.

43 = 64

log64 4 = 3

log4 64 = 3

log4 64 = -3

log4 3 = 64

log4 64 = 1/3

QUESTION 9

Use the properties of logarithms to simplify the expression.

log20 209

0

–1/9

1/9

-9

9

QUESTION 10

Use the One-to-One property to solve the equation for x.

log2(x+4) = log2 20

19

17

18

16

20

QUESTION 11

Find the exact value of the logarithmic expression.

log6 36

2

6

36

-2

none of these

QUESTION 12

Use the properties of logarithms to expand the expression as a sum, difference, and/or constant multiple of logarithms. (Assume all variables are positive.)

log3 9x

log3 9 x log3 x

log3 9 + log3 x

log3 9 log3...

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