The diagram shows a regular pentagon with side length s. Explore
the area of this pentagon by following these steps.
✓ 1. Press Continue to partition the pentagon into five congruent
triangles.
2. Press Continue to draw an apothem with length a.
3. Based on the variables on the diagram, how can the area of the
shaded triangle be determined?
Area = 1

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the exponential expression to find the value of the cd, in dollars, after t years will be:  

step-by-step explanation:

formula of compound interest:   , where final value after years,   initial value, rate of interest in decimal and number of compounding in a year.

oliver plans to purchase a $1,500 certificate of deposit (cd) at his bank. that means,  

the cd will earn 2.3% interest, compounded semi-annually.

so,   and  

now, plugging these values into the above formula, we will

(rounded to the nearest ten-thousandth)

so, the exponential expression to find the value of the cd, in dollars, after t years will be: