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3 years ago

If f(x) = 3 – x2, find f(-2).

Mathematics

1 answer:

Rufina [12.5K]3 years ago

4 0

Answer:

f(- 2) = - 1

Step-by-step explanation:

To evaluate f(- 2) substitute x = - 2 into f(x) , that is

f(- 2) = 3 - (- 2)² = 3 - 4 = - 1

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<h2><em>Three to the three fifths power.</em></h2>

Step-by-step explanation:

The given expression is

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To simplify this expression, we have to use a specific power property which allow us to transform a root into a power with a fractional exponent, the property states:

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Applying the property, we have:

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Now, we multiply exponents:

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Then, we sum exponents to get the simplest form:

$3^{\frac{1}{2}}3^{\frac{1}{10}}=3^{\frac{1}{2}+\frac{1}{10}} =3^{\frac{10+2}{20}}=3^{\frac{12}{20}} \\\therefore \sqrt{3\sqrt[5]{3}}=3^{\frac{3}{5} }$

Therefore, the right answer is <em>three to the three fifths power.</em>

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