wanderlay29
22.06.2019 •
Mathematics
The value, v, of kalani’s stock investments over a time period, x, can be determined using the equation v=750(0.80)^-x. what is the rate of increase or decrease associated with this account? 20% decrease 20% increase 25% decrease 25% increase
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Ответ:
The rate of this account corresponds to a increse of 25%.(Option 4)
Step-by-step explanation:
To find out the increase/decrease rate, first we need to re express the exponential term:
V=750*(0.80)^-x
By applying the respectives properties we can express the exponent of the equation as follows:
(0.80)^-x = 1/(0.8^x) = (1^x)/(0.8^x) = (1/0.8)^x = 1.25^x
Then the Kalani's stock investments can be written as:
V=750*1.25^x
Then the above equation can be expressed as:
V=750*(1+0.25)^x
Where 0.25 represents a increment rate of 25%
Ответ:
25% increase
Step-by-step explanation:
on edge
Ответ: