Finite Math Examples

$z = \frac{15 - 18}{4 \sqrt{16}}$

Step 1

Subtract $18$ from $15$ .

$z = \frac{- 3}{4 \sqrt{16}}$

Step 2

Simplify the denominator.

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Step 2.1

Rewrite $16$ as $4^{2}$ .

$z = \frac{- 3}{4 \sqrt{4^{2}}}$

Step 2.2

Pull terms out from under the radical, assuming positive real numbers.

$z = \frac{- 3}{4 \cdot 4}$

Step 3

Simplify the expression.

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Step 3.1

Multiply $4$ by $4$ .

$z = \frac{- 3}{16}$

Step 3.2

Move the negative in front of the fraction.

$z = - \frac{3}{16}$

Step 4

The result can be shown in multiple forms.

Exact Form:

$z = - \frac{3}{16}$

Decimal Form:

$z = - 0.1875$