Quiz about SAT MATH REVIEW

Question 1

If f(x) = 2x + 1 and g(x) = 4x - 4, what is f(0) x g(0)?

Accepted Answer

-4

Answer

-5

Answer

4

Answer

8

Question 2

If y:z is equal to 1:3 and z:a is equal to 2:3, what ratio is equal to y:a?

Accepted Answer

2:9

Answer

1:3

Answer

1:2

Answer

2:3

Question 3

A group of people are surveyed about the number of books they read each month, and the results are graphed in the pie chart. If the sample accurately represents the 420,000 people in the city of Omaha, how many people in Omaha can we expect to read 3 or more books per month?

Accepted Answer

105,000

Answer

84,000

Answer

189,000

Answer

218,000

Question 4

A printer can print at a rate of 5 pages per minute. How many hours will it take to print 300 pages?

Accepted Answer

1 hour

Answer

0.5 hours

Answer

1.5 hours

Answer

3 hours

Question 5

If f(x) is a linear function that passes through the points (4, 3) and (-4, -9), what is the y-intercept of f(x)?

Accepted Answer

(0, -3)

Answer

(0, 2)

Answer

(2, 0)

Answer

(-3, 0)

Question 6

What is the average of 2x + 4, 5x - 1, and -x+3?

Accepted Answer

2x+2

Answer

x+2

Answer

x-2

Answer

2x-2

Question 7

A random sample of the students in two different universities were surveyed for their sleep habits. The results are shown in the table above. Which of the following statements is supported by the information in the table?

Accepted Answer

The hours of sleep per night varies more among students at University A than students at University B.

Answer

More students attend University B than University A.

Answer

More than half of the students at University B get 7 hours of sleep per night.

Answer

Half of the students at University A get 6 hours of sleep per night.

Question 8

The table above shows the number of fire any colonies found in Greenville from 1992 to 2995. Which of the following graphs best represents the number of fire ant colonies in Greenville during this time period?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 9

Logan bought 36 pieces of bubble gum, which was 40% of the store's stock. How much bubble gum is remaining in the store?

Accepted Answer

90

Answer

54

Answer

72

Answer

80

Question 10

A company polls a group of 1,067 people randomly selected to represent New York City. The company determines that 10% of the sample group does not like cheese, while the remaining 90% does like cheese. The poll is true with a 3% margin of error. If there are 8.5 million people in New York City, what is the best estimate for the number of people who do not like cheese?

Accepted Answer

Between 595,000 and 1,105,000 people

Answer

850,000 people

Answer

Between 425,000 and 1,275,000 people

Answer

Between 722,500 and 977,500 people

Question 11

What is the sin(x) in the figure?

Accepted Answer

3/5

Answer

3/4

Answer

4/5

Answer

5/3

Question 12

A research assistant randomly selected 75 undergraduate students from the list of all students enrolled in the psychology-degree program at a large university. She asked each of the 75 students, "How many minutes per day do you typically spend reading?" The mean reading time in the sample was 89 minutes, and the margin or error for this estimate was 4.28 minutes.

Another research assistant intends to replicate the survey and will most attempt to get a smaller margin of error. Which of the following samples will most likely result in a smaller margin of error for the estimated mean time students in the psychology-degree program read per day?

Accepted Answer

300 randomly selected undergraduate psychology-degree program students

Answer

40 randomly selected undergraduate psychology-degree program students

Answer

40 randomly selected undergraduate students from all degree programs at the college

Answer

300 randomly selected undergraduate students from all degree programs at the college

Question 13

The first metacarpal bone is located in the wrist. The scatterplot below shows the relationship between the length of the first metacarpal bone and height for 9 people. The line of best fit is also shown.

How many of the nine people have an actual height that differs by more than 3 centimeters from the height predicted by the line of best fit?

Accepted Answer

4

Answer

2

Answer

6

Answer

9

Question 14

A system of three equations is graphed. How many solutions does the system have?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 15

The table below classifies 103 elements as metal, metalloid, or nonmetal and as solid, liquid, or gas at standard temperature and pressure.

What fraction of all solids and liquids in the table are metalloids?

Accepted Answer

7/92

Answer

2/30

Answer

1/2

Answer

0

Question 16

A company's manager estimated that the cost C, in dollars of producing "n" items is C = 7n + 350. The company sells each item for $12. The company makes a profit when total income from selling a quantity of items is greater than the total cost of producing that quantity of items. Which of the following inequalities gives all possible values of "n" for which the manager estimates that the company will make a profit?

Accepted Answer

n > 70

Answer

n < 70

Answer

n < 84

Answer

n > 84

Question 17

A researcher wanted to know if there is an association between exercise and sleep for the population of 16-year-olds in the United States. She obtained survey responses from a random sample of 2000 United States 16-year-olds and found convincing evidence of a positive association between exercise and sleep. Which of the following conclusions is well supported by the data?

Accepted Answer

There is a positive association between exercise and sleep for 16-year-olds in the United States.

Answer

There is a positive association between exercise and sleep for 16-year-olds in the world.

Answer

Using exercise and sleep as defined by the study, an increase in sleep is caused by an increase of exercise for 16-year-olds in the United States.

Answer

Using exercise and sleep as defined by the study, an increase in sleep is caused by an increase of exercise for 16-year-olds in the world.

Question 18

The scatterplot above shows counts of Florida manatees, a type of sea mammal, from 1991 to 2011. Based on the line of best fit to the data shown, which of the following values is closest to the average yearly increase in the number of manatees?

Accepted Answer

150

Answer

0.75

Answer

75

Answer

750

Question 19

A researcher places two colonies of bacteria into two petri dishes that each have area 10 square centimeters. After the initial placement of the bacteria the researcher measures and records the area covered by the bacteria in each dish every ten minutes. The data for each dish were fit by a smooth curve, as shown above, where each curve represents the area of a dish covered by bacteria as a function of time, in hours. Which of the following is a correct statement about the data above?

Accepted Answer

At time t = 0, bacteria covers 10% of Dish 1 and 20% of Dish 2.

Answer

At time t = 0, both dishes are 100% covered by bacteria.

Answer

At time t= 0, Dish 2 is covered with 50% more bacteria than Dish 1.

Answer

For the first hour, the area covered in Dish 2 is increasing at a higher average rate than the area covered in Dish 1.

Question 20

A typical image taken of the surface of Mars by a camera is 11.2 gigabits in size. A tracking station on Earth can receive data from the spacecraft at a data rate of 3 megabits per second for a maximum of 11 hours each day. If 1 gigabit equals 1,024 megabits, what is the maximum number of typical images that the tracking station could receive from the camera each day?

Accepted Answer

10

Answer

3

Answer

56

Answer

144

Question 21

An architect drew the sketch below while designing a house roof. The dimensions shown are for the interior of the triangle.

Accepted Answer

2/3

Answer

3/4

Answer

3/5

Answer

4/5

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