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thechameleonnaire
31.03.2020 •
Mathematics
Bob has $830 in an account earning 5.3% simple interest. how much more interest would her account earn in 9 years with annually compounded interest?
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Ответ:
1321.09
Step-by-step explanation:
y=ab^x a= initial amount= 830 b=interest = 1.053 x= time= 9
830(1.053)^9
put that into your calculator and there is your answer
Ответ:
Explanation:
We need to find the area of the rectangle:
Area: A = L * w = length * width = 12 ft. * 18 ft. = 216 ft.²
Then we need to find the area of the TRAPEZOID that is on top of the rectangle:
Area: A = (1/2) * (base 1 + base 2) * height
= (1/2) * (18 ft. + 10 ft.) * 6 ft.
= (1/2) * ( 28 ft.) * (6ft.)
= 84 ft.²
Now, we add the 2 (TWO) areas together, to get the
216 ft.² + 84 ft.² = 300 ft.² .