Algebra W7 Assignment , math homework help

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Algebra W7 Assignment , math homework help

QUESTION 1

  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

5 points

QUESTION 2

  1. Match the graph with its exponential function.
    y = 2-x – 3
    y = -2x + 3
    y = 2x + 3
    y = 2x – 3
    y = -2x – 3

5 points

QUESTION 3

  1. Select the graph of the function.f(x) = 5x-1

5 points

QUESTION 4

  1. 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

5 points

QUESTION 5

  1. Use the One-to-One property to solve the equation for x.e3x+5 = e6
    x = –1/3
    x2 = 6
    x = -3
    x = 1/3
    x = 3

5 points

QUESTION 6

  1. Write the logarithmic equation in exponential form.log8 64 = 2
    648 = 2
    82 = 16
    82 = 88
    82 = 64
    864 = 2

5 points

QUESTION 7

  1. Write the logarithmic equation in exponential form.log7 343 = 3
    7343 = 2
    73 = 77
    73 = 343
    73 = 14
    3437 = 2

5 points

QUESTION 8

  1. 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

5 points

QUESTION 9

  1. Use the properties of logarithms to simplify the expression.log20 209
    0
    –1/9
    1/9
    -9
    9

5 points

QUESTION 10

  1. Use the One-to-One property to solve the equation for x.log2(x+4) = log2 20
    19
    17
    18
    16
    20

5 points

QUESTION 11

  1. Find the exact value of the logarithmic expression.log6 36
    2
    6
    36
    -2
    none of these

5 points

QUESTION 12

  1. 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
    none of these

5 points

QUESTION 13

  1. Condense the expression to a logarithm of a single quantity. logx – 2logy + 3logz

5 points

QUESTION 14

  1. Evaluate the logarithm using the change-of-base formula. Round your result to three decimal places.log4 9
    1.585
    5.585
    3.585
    4.585
    2.585

5 points

QUESTION 15

  1. Determine whether the given x-value is a solution (or an approximate solution) of the equation.42x-7 = 16x = 5
    no
    yes

5 points

QUESTION 16

  1. Solve for x.3x = 81
    7
    3
    4
    -4
    -3

5 points

QUESTION 17

  1. Solve the exponential equation algebraically. Approximate the resulte to three decimal places.e5x = ex2-14
    -7, -2
    7, -2
    5, -14
    7, 2
    -7, 2

5 points

QUESTION 18

  1. Solve the logarithmic equation algebraically. Approximate the result to three decimal places.log3(6x-8) = log3(5x + 10)
    18
    20
    17
    19
    -2

5 points

QUESTION 19

  1. Find the magnitude R of each earthquake of intensity I (let I0=1).I = 19000
    3.28
    5.28
    4.28
    2.38
    6.28

5 points

QUESTION 20

  1. $2500 is invested in an account at interest rate r, compounded continuously. Find the time required for the amount to double. (Approximate the result to two decimal places.)r = 0.0570
    13.16 years
    10.16 years
    11.16 years
    12.16 years
    14.16 years