Math Quiz

What is the square root of 25?

• 3

• 5

• 7

• 10

Solve for x: 2x + 5 = 15

• 5

• 6

• 7

• 8

A national park covers approximately 3 x 10^5 acres of land. A state park covers approximately 5 x 10^3 acres of land. The land area of the national park is approximately how many times as many acres as the land area of the state park?

• 6

• 17

• 60

• 167

Brian claims that the product of a rational number and an irrational number is always irrational. Which counterexample proves that Brian’s claim is not true?

• multiplying 0 by (2/3)

• multiplying 0 by √2

• multiplying 1/2 by √2

• multiplying √2 by √2

Which number line shows point N located at the value of the rational number?

• A

• B

• C

• D

Kevin writes the population of his city in the form a x 10^5. He also writes the average income of the people in his city in the form b x 10^4. To find the total income for all the people in his city, he multiplies his two values. Kevin says his product will be of the form c x 10^9 when written in scientific notation. Which statement explains whether Kevin is correct?

• Kevin is correct only if ab < 10.

• Kevin is correct only if a + b < 10.

• Kevin is not correct because the exponents are subtracted when multiplying powers with the same base, and 5 − 4 = 1.

• Kevin is not correct because the exponents are multiplied when multiplying powers with the same base, and 5 x 4 = 20.

Lily is making cookies. The graph below shows the linear relationship between the number of cups of butter and the number of cups of sugar she uses.

• A. 3/4

• B. 1 1/2

• C. 2 1/4

• D. 3

Kara uses 4 red lights for every 9 purple lights in an art display. Which graph models the relationship between the number of red lights (x) and the number of purple lights (y) Kara uses?

• Graph A

• Graph B

• Graph C

• Graph D

The graph below shows a line and triangles A and B. Which statement about the graph is correct?

• The slope of the line is -3/2, and the length of the hypotenuse of triangle B is 3/2 times the length of the hypotenuse of triangle A.

• The slope of the line is -3/2, and the length of the hypotenuse of triangle B is 2 times the length of the hypotenuse of triangle A.

• The slope of the line is -2/3, and the length of the hypotenuse of triangle B is 3/2 times the length of the hypotenuse of triangle A.

• The slope of the line is -2/3, and the length of the hypotenuse of triangle B is 2 times the length of the hypotenuse of triangle A.

The graph below shows the relationship between the time, in hours, and the number of books printed, in thousands, at a book manufacturing company.

• y = 1/3x

• y = x + 1/3

• y = 3x

• y = x + 3