Suppose heather places $3500 in an account that pays 11% interest compounded each year. assume that no withdrawals are made from the account.
1) find the amount in the account at the end of 1 year.
2)find the amount in the account at the end of 2 years.

 1) $3885   2) $4312.35

Step-by-step explanation:

The formula to find the compound amount is given by :-

, where P is the principal amount , r is the rate of interest and t is the time period.

Given : Principal amount : ,

Rate of interest :

When t=1 , then the amount in the account at the end of 1 year:-

When t=2 , then the amount in the account at the end of 1 year:-

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.