Precalculus Examples

$h (t) = - 2 \cdot 5^{- t - 1}$ ; Find $h (- 2)$

Step 1

Replace the variable $t$ with $- 2$ in the expression.

$h (- 2) = - 2 \cdot 5^{- (- 2) - 1}$

Step 2

Simplify $- 2 \cdot 5^{- (- 2) - 1}$ .

Tap for more steps...

Step 2.1

Remove parentheses.

$- 2 \cdot 5^{- (- 2) - 1}$

Step 2.2

Multiply $- 1$ by $- 2$ .

$- 2 \cdot 5^{2 - 1}$

Step 2.3

Subtract $1$ from $2$ .

$- 2 \cdot 5^{1}$

Step 2.4

Evaluate the exponent.

$- 2 \cdot 5$

Step 2.5

Multiply $- 2$ by $5$ .

$- 10$