Name: SAT Math Help & School Math Mastery
Availability: InStock

Loading...

#14202

functions

exponential

hard

60 sec

The value of an investment, $V (x)$ , decreases by 30% each year $x$ . If the initial investment was $120, which equation represents the value of the investment after $x$ years?

A.

$V (x) = 120 (0.30)^{x}$

B.

$V (x) = 30 (0.70)^{x}$

C.

$V (x) = 120 (1.30)^{x}$

D.

$V (x) = 120 (0.70)^{x}$