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6.7: Quiz II

Created by: CK-12

Multiple Choice – Please circle the letter of the correct answer and write that letter in the space provided to the left of each question.

  1. ________ What is the standard form of 6.57 \times 10^{-4}?
    1. \frac{1}{657}
    2. 0.000657
    3. 65 700
    4. -0.000657
  2. ________ What is the solution for the exponential equation 4^{3x+5}=2^{4x-3}?
    1. 8
    2. -10
    3. -\frac{2}{7}
    4. -\frac{13}{2}
  3. ________ If f(x)=2(3^{-x+3}), what is the value of ‘x’ if f(x)=\frac{2}{9}?
    1. x=5
    2. x=9
    3. x=3
    4. x=2
  4. ________ What is the result of expressing 37100000 in scientific notation?
    1. 3.71 \times 10^2
    2. 3.71 \times 10^7
    3. 0.371 \times 10^3
    4. 3.71 \times 10^{-1}
  5. ________ If Maria invested $200 in a savings bond that appreciates 8% compounded annually, how much money will she have at the end of 10 years?
    1. $631.78
    2. $216.59
    3. $431.78
    4. $416.59
  6. ________ What is the y-intercept of the exponential function y=4(0.5)^6?
    1. y=0.02
    2. y=0.5
    3. y=6
    4. y=4
  7. ________ If the mean temperature in Phoenix is 94^\circ F and is expected to increase by 0.5% annually, what will be the predicted mean temperature in 20 years?
    1. 98.8^\circ F
    2. 94.5^\circ F
    3. 118^\circ F
    4. 105^\circ F
  8. ________ For the following values of an exponential function, what is the common ratio? (0,2.5); (1,2.97); (2,3.54); (3,4.2); (4,5.01)
    1. 0.84
    2. 2.5
    3. 1.19
    4. 0.47
  9. ________ What is the result of 7.8 \times 10^{-3} -4.6 \times 10^{-4}?
    1. 3.2 \times 10^{-1}
    2. 3.2 \times 10^{-7}
    3. 73.4 \times 10^{-3}
    4. 7.34 \times 10^{-3}
  10. ________ The population of 978 students at a high school depreciates by 8% each year. If this continues, how many students will be in attendance 6 years from now?
    1. 256
    2. 593
    3. 722
    4. 385

Answers to Quiz II

  1. B
  2. D
  3. A
  4. B
  5. C
  6. D
  7. A
  8. C
  9. D
  10. B

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Jan 16, 2013

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Dec 23, 2014
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CK.MAT.ENG.SE.1.Algebra-I---Honors.6.7

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