What is the volume of a cone with a diameter of 6 units and a height of 16 units?
1 answer:
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Option b: 7000
Explanation:
The function that Larissa earns on an investment is
The amount of money originally invested by Larissa can be found using the compound interest formula,
where
P is the amount of money invested. (Principal)
r is the rate of interest which can be expressed as decimals.
x is the number of periods.
Hence, comparing with the formula
, the principal amount can be determined.
Thus, the principal amount is 7000.
After 2 years value of the phone is $128. option C
Step-by-step explanation:
Given,
Original price of the phone = $ 800
Each year it loses of its value.
To find the value of phone after 2 years.
In 1st years
The value of the phone is= $800 - (800×)
= $ 800-240 = $ 320
In 2nd year
The value of the phone is= $320 - (320×)
= $ 320 - 192 = $ 128
Hence,
After 2 years value of the phone is $128.