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OverLord2011 [107]
2 years ago
11

Judith’s parents invest money into a bank account to save up for college. The formula () = ,(.) can be used to find out how much

their investment is worth after t years. a. How much was their initial investment? b. What was the interest rate the investment earned each year? c. How much money would be in the account after 18 years?
Mathematics
1 answer:
Semenov [28]2 years ago
6 0

Answer:

c. How much money would be in the account after 18 years?

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What is the y-value for f(x) = cos(x) when x = 180°?<br> -1<br> 0<br> 1/2<br> 1
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What is the explict formula for the arithmetic sequence -7.5,-9,-10.5,-12
elena-14-01-66 [18.8K]

Answer:

<u>x = -7.5 - 1.5(n−1) </u>

Step-by-step explanation:

the explicit formula for the arithmetic sequence has the form

x = a + d(n−1)

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-7.5,-9,-10.5,-12

The first term is -7.5

d = common difference = -9 - (-7.5) = -1.5

∴ x = -7.5 - 1.5(n−1)

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