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Shota invests 
$2000 in a certificate of deposit that earns 
2% in interest each year.
Write a function that gives the total value 
V(t), in dollars, of the investment 
t years from now. Do not enter commas in your answer.

V(t)=

Shota invests $2000 \$ 2000 in a certificate of deposit that earns 2% 2 \% in interest each year.\newlineWrite a function that gives the total value V(t) V(t) , in dollars, of the investment t t years from now.\newlineDo not enter commas in your answer.\newline V(t)=V(t)= \square

Full solution

Q. Shota invests $2000 \$ 2000 in a certificate of deposit that earns 2% 2 \% in interest each year.\newlineWrite a function that gives the total value V(t) V(t) , in dollars, of the investment t t years from now.\newlineDo not enter commas in your answer.\newline V(t)=V(t)= \square
  1. Identify Interest Type: Identify the type of interest being calculated.\newlineSince the problem states that the investment earns 2%2\% in interest each year, this suggests that the interest is compounded annually.
  2. Write Compound Interest Formula: Write the formula for compound interest.\newlineThe formula for compound interest is V(t)=P(1+rn)ntV(t) = P(1 + \frac{r}{n})^{nt}, where PP is the principal amount, rr is the annual interest rate, nn is the number of times the interest is compounded per year, and tt is the number of years.
  3. Plug in Values: Plug in the values into the formula.\newlineSince the interest is compounded annually, n=1n = 1. The principal PP is $2000\$2000, the annual interest rate rr is 2%2\% or 0.020.02, and tt is the number of years. So the formula becomes V(t)=2000(1+0.02/1)(1t)V(t) = 2000(1 + 0.02/1)^{(1\cdot t)}.
  4. Simplify the Formula: Simplify the formula.\newlineV(t)=2000(1+0.02)tV(t) = 2000(1 + 0.02)^t\newlineV(t)=2000(1.02)tV(t) = 2000(1.02)^t\newlineThis is the function that gives the total value of the investment tt years from now.

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