Number System: Practice 2 | Homework Practice

Section A: Core Practice

Question 1mcq

Which of the following is irrational?

A.

-3

B.

\frac{7}{8}

C.

0.75

D.

\sqrt{7}

Question 2mcq

Which decimal expansion is non-terminating and recurring?

A.

0.5

B.

0.25

C.

0.\overline{3}

D.

2.0

Question 3mcq

Evaluate

(-2)^{3}-(-2)^{2}

.

A.

-4

B.

-12

C.

4

D.

12

Question 4mcq

During a sports model on density of rational numbers, find one rational number between

\frac{2}{5}

and

\frac{3}{5}

.

A.

\frac{1}{2}

B.

\frac{1}{5}

C.

\frac{4}{5}

D.

\frac{5}{5}

Question 5mcq

Write

0.875

as a fraction in simplest form.

A.

\frac{35}{40}

B.

\frac{875}{10}

C.

\frac{8}{7}

D.

\frac{7}{8}

Section B: Application Practice

Question 6mcq

Which of the following is irrational?

A.

0.75

B.

\frac{7}{8}

C.

\sqrt{7}

D.

-3

Question 7mcq

Which decimal expansion is non-terminating and recurring?

A.

0.25

B.

0.\overline{3}

C.

0.5

D.

2.0

Question 8mcq

Evaluate

(-2)^{3}-(-2)^{2}

.

A.

-12

B.

-4

C.

4

D.

12

Question 9mcq

During a library model on density of rational numbers, find one rational number between

\frac{2}{5}

and

\frac{3}{5}

.

A.

\frac{5}{5}

B.

\frac{1}{5}

C.

\frac{4}{5}

D.

\frac{1}{2}

Question 10mcq

Which number lies between

\frac{1}{3}

and

\frac{2}{3}

?

A.

\frac{4}{3}

B.

\frac{1}{6}

C.

\frac{1}{2}

D.

\frac{5}{6}