1.1-1.2 + Math I Review Quiz Practice

Is the result rational or irrational? Explain.

• Rational; The sum of two rationals is always rational.
• Irrational; The sum of a rational and an irrational is always irrational.
• Rational; The product of two rationals is always rational.
• Irrational; The product of a nonzero rational and an irrational is always irrational.

Is the result rational or irrational? Explain.

• Rational; The sum of two rationals is always rational.
• Irrational; The sum of a rational and an irrational is always irrational.
• Rational; The product of two rationals is always rational.
• Irrational; The product of a nonzero rational and an irrational is always irrational.

Is the result rational or irrational? Explain.

• Rational; The sum of two rationals is always rational.
• Irrational; The sum of a rational and an irrational is always irrational.
• Rational; The product of two rationals is always rational.
• Irrational; The product of a nonzero rational and an irrational is always irrational.

Is the result rational or irrational? Explain.

• Rational; The sum of two rationals is always rational.
• Irrational; The sum of a rational and an irrational is always irrational.
• Rational; The product of two rationals is always rational.
• Irrational; The product of a nonzero rational and an irrational is always irrational.

an example of an irrational number is

• ∏
• 3.14
• ⅖
• 125%

The square root of 3 is between

• 2 and 3
• 0 and 1
• 1 and 2

Irrational numbers are real numbers

• True
• False

If U = {1, 3, 5, 7, 9, 11, 13}, then which of the following are subsets of U.

• A = {2, 4}

• B = {13, 7, 9, 11, 5, 3, 1}

• C = {2, 3, 4, 5}

• D = {0}

Re-write the expression in radical form.
x^2/3

• ∛x²
• √x³
• (1/x)
• ∛x

Write the following expression in exponential form:

• a.)
• b.)
• c.)
• d.)