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Evaluate the expression sqrt(2(1)/(4) x 1((1)/(3))2) + [3]3(3)/(8).

Mathematics

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Answer

2

Step-by-step solution

3 steps
  1. Evaluate the first term of the expression.

    The first term is 214×1(13)2\sqrt{2\frac{1}{4} \times 1\left(\frac{1}{3}\right)^2}.
    First, convert the mixed number to an improper fraction:

    214=(2×4)+14=8+14=942\frac{1}{4} = \frac{(2 \times 4) + 1}{4} = \frac{8 + 1}{4} = \frac{9}{4}

    Next, calculate the square of the fraction:

    (13)2=1232=19\left(\frac{1}{3}\right)^2 = \frac{1^2}{3^2} = \frac{1}{9}

    Now, substitute these values back into the first term:

    94×1×19\sqrt{\frac{9}{4} \times 1 \times \frac{1}{9}}

    Multiply the fractions under the square root:

    94×19=9×14×9=936\sqrt{\frac{9}{4} \times \frac{1}{9}} = \sqrt{\frac{9 \times 1}{4 \times 9}} = \sqrt{\frac{9}{36}}

    Simplify the fraction:

    936=14\sqrt{\frac{9}{36}} = \sqrt{\frac{1}{4}}

    Take the square root:

    14=14=12\sqrt{\frac{1}{4}} = \frac{\sqrt{1}}{\sqrt{4}} = \frac{1}{2}
  2. Evaluate the second term of the expression.

    The second term is 3383\sqrt[3]{3\frac{3}{8}}.
    First, convert the mixed number to an improper fraction:

    338=(3×8)+38=24+38=2783\frac{3}{8} = \frac{(3 \times 8) + 3}{8} = \frac{24 + 3}{8} = \frac{27}{8}

    Now, take the cube root:

    2783=27383\sqrt[3]{\frac{27}{8}} = \frac{\sqrt[3]{27}}{\sqrt[3]{8}}

    Calculate the cube roots:

    273=3(since 3×3×3=27)\sqrt[3]{27} = 3 \quad (\text{since } 3 \times 3 \times 3 = 27) 83=2(since 2×2×2=8)\sqrt[3]{8} = 2 \quad (\text{since } 2 \times 2 \times 2 = 8)

    So, the second term is:

    32\frac{3}{2}
  3. Add the results from Step 1 and Step 2.

    The total value of the expression is the sum of the two terms:

    12+32\frac{1}{2} + \frac{3}{2}

    Add the fractions:

    1+32=42\frac{1+3}{2} = \frac{4}{2}

    Simplify the result:

    42=2\frac{4}{2} = 2

    The value of the expression is 2.

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