What type of number will result from 512⋅16−−√

?(1 point)
Responses

Irrational, because one factor is irrational.
Irrational, because one factor is irrational.

Radical, because one factor is a radical.
Radical, because one factor is a radical.

Irrational, because both factors are irrational.
Irrational, because both factors are irrational.

Rational, because both numbers are rational.

1 answer

To determine the type of number that results from \( 512 \cdot \sqrt{16} \), let's analyze each component:

  1. Calculating \(\sqrt{16}\): \[ \sqrt{16} = 4 \] Since 4 is a rational number.

  2. Calculating \(512 \cdot \sqrt{16}\): \[ 512 \cdot 4 = 2048 \] Since 2048 is also a rational number.

Now, we can analyze the options given:

  • Irrational, because one factor is irrational. (not correct; both factors are rational)
  • Radical, because one factor is a radical. (not the appropriate definition; the result is not classified as "radical")
  • Irrational, because both factors are irrational. (not correct; both factors are rational)
  • Rational, because both numbers are rational. (correct; both factors \(512\) and \(4\) are rational)

The correct response is: Rational, because both numbers are rational.

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