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1. Oceans, seas, and bays represent about 96.5% of Earth's water, including the water found in our atmosphere. If the volume of the water contained in oceans, seas, and bays is about 321,000,000 cubic miles, which of the following best represents the approximate volume, in cubic miles, of all the world's water?

  • A. 308,160,000
  • B. 309,765,000
  • C. 332,642,000
  • D. 334,375,000

2. An electrician charges a one-time site visit fee to evaluate a potential job. If the electrician accepts the job, he charges an hourly rate plus the cost of any materials needed to complete the job. The electrician also charges for tax, but only on the cost of the materials. If the total cost of completing a job that takes h hours is given by the function C(h) = 45h + 1.06(82.5) + 75, then the term 1.06(82.5) represents

  • A. the hourly rate.
  • B. the site visit fee.
  • C. the cost of the materials, including tax.
  • D. the cost of the materials, not including tax.

3.

The figure above shows the solution set for the system . Which of the following is not a solution to the system?

  • A. (0, 3)
  • B. (1, 2)
  • C. (2, 4)
  • D. (3, 3)

4.

Each of the following quadratic equations represents the graph shown above. Which equation reveals the exact values of the x-intercepts of the graph?

  • A.
  • B.
  • C.
  • D.

5.

Margo surveyed all the students in the government classes at her school to see what they thought should be the most important concern of a national government. The results of the survey are shown in the figure above. If the ratio of students who answered "Foreign Policy" to those who answered "Environment" was 5:3, what percentage of the students answered "Environment"?

  • A. 16%
  • B. 21%
  • C. 24%
  • D. 35%

6.

Which of the following best describes the type of association shown in the scatterplot above?

  • A. linear, positive
  • B. linear, negative
  • C. exponential, positive
  • D. exponential, negative

7. Data from U.S. Energy Information Administration.

The figure above shows the average annual gas prices in the United States from 2003 to 2013. Based on the information shown, which of the following conclusions is valid?

  • A. A gallon of gas cost more in 2008 than in 2013.
  • B. The price more than doubled between 2003 and 2013.
  • C. The drop in price from 2008 to 2009 was more than $1.00 per gallon.
  • D. The overall change in price was greater between 2003 and 2008 than it was between 2008 and 2013.

8.

If (x, y) is a solution to the system of equations above, what is the sum of x and y?

  • A.
  • B. -4
  • C.
  • D. -3

9.

A voltage divider is a simple circuit that converts a large voltage into a smaller one. The figure above shows a voltage divider that consists of two resistors that together have a total resistance of 294 ohms. To produce the desired voltage of 330 volts, R2 must be 6 ohms less than twice R1. Solving which of the following systems of equations gives the individual resistances for R1 and R2?

  • A.
  • B.
  • C.
  • D.

10. If , what is the value of x?

  • A. x = -2
  • B. x = 2
  • C. There is no value of x for which the equation is true.
  • D. There are infinitely many values of x for which the equation is true.

11. Crude oil is being transferred from a full rectangular storage container with dimensions 4 meters by 9 meters by 10 meters into a cylindrical transportation container that has a diameter of 6 meters. What is the minimum possible length for a transportation container that will hold all of the oil?

  • A. 40π
  • B.
  • C. 60π
  • D.

12. The percent increase from 5 to 12 is equal to the percent increase from 12 to what number?

  • A. 16.8
  • B. 19.0
  • C. 26.6
  • D. 28.8

13. The brightness of a celestial body, like a star, decreases as you move away from it. In contrast, the luminosity of a celestial body is a constant number that represents its intrinsic brightness. The inverse square law, shown above, is used to find the brightness, b, of a celestial body when you know its luminosity, L, and the distance, d, in meters to the body. Which equation shows the distance to a celestial body, given its brightness and luminosity?

  • A.
  • B.
  • C.
  • D.

14. Each month, the Bureau of Labor Statistics conducts a survey called the Current Population Survey (CPS) to measure unemployment in the United States. Across the country, about 60,000 households are included in the survey sample. These households are grouped by geographic region. A summary of the January 2014 survey results for male respondents in one geographic region is shown in the table below.

Employed Unemployed Not in the Labor Force Total
16 to 19 8 5 10 23
20 to 24 26 7 23 56
25 to 34 142 11 28 157
35 to 44 144 8 32 164
45 to 54 66 6 26 98
Over 54 65 7 36 152
Total 451 44 155 650

According to the data in the table, for which age group did the smallest percentage of men report that they were unemployed in January 2014?

  • A. 20 to 24 years
  • B. 35 to 44 years
  • C. 45 to 54 years
  • D. Over 54 years

15. Each month, the Bureau of Labor Statistics conducts a survey called the Current Population Survey (CPS) to measure unemployment in the United States. Across the country, about 60,000 households are included in the survey sample. These households are grouped by geographic region. A summary of the January 2014 survey results for male respondents in one geographic region is shown in the table below.

Employed Unemployed Not in the Labor Force Total
16 to 19 8 5 10 23
20 to 24 26 7 23 56
25 to 34 142 11 28 157
35 to 44 144 8 32 164
45 to 54 66 6 26 98
Over 54 65 7 36 152
Total 451 44 155 650

If one unemployed man from this sample is chosen at random for a follow-up survey, what is the probability that he will be between the ages of 45 and 54?

  • A. 6.0%
  • B. 13.6%
  • C. 15.1%
  • D. 44.9%