Aprincipal of $3900 is invested at 7.25% interest, compounded annually . how much will the investment be worth after 11 years?

Total after 11 years: $46,010.25

Just interest after 11 years: $3,110.25

Step-by-step explanation:

Multiply 3900 by 0.0725, which is the decimal version of 7.25%

3900×0.0725=282.75

Add that interest (which is interest for one year) to the 3900. You get 4182.75. That is one year of the principle and interest combined.

Multiply this by 11.

11×4182.75= 46,010.25

If you need to find just the amount of interest over 11 years, multiply the 282.75, which we found earlier, by 11.

282.75×11=3110.25

the 2 figures are congruent bc if you reflect abcd over the y axis then over the d axis the figures overlap

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)