gjvyverman
24.07.2019 •
Mathematics
The function below represents the interest larissa earns on an investment. identify the term that represents the amount of money originally invested.
f(x) = 7,000(1 + 0.03)^x
a.1
b.7,000
c.0.03
d.1.03
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Ответ:
The linear approximation of B(t) at t = 2.2 estimates B(t) = 9 for t = 2.8328
Step-by-step explanation:
b'(2.2) = 8 * e^(0.2cos(2.2)) = 7.1117 and b(2.2) = 4.5. The linear approximation of B(t) at t = 2.2 is
L(t) = 7.1117*(t-2.2) + 4.5
We want t so that L(t) = 9
9 = 7.1117*(t-2.2) + 4.5
4.5 = 7.1117 *(t-2.2)
t-2.2 = 4.5/7.1117 = 0.6327601
t = 2.2+0.6327601 = 2.8328