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BabaBlast [244]
4 years ago
8

you invest 2000 in a simple interest account. The balance after 8 years is 2720. What is the interest rate?

Mathematics
1 answer:
Burka [1]4 years ago
3 0

Answer:

4.5%

Step-by-step explanation:

Find interest rate by using the formula I=P⋅i⋅t, where I is interest, P is total principal, i is rate of interest per year, and t is total time in years.


I = $720, P = $2000 and t = 8 years, so

I = P*i*t

i = I/P*t

i = 720 / 2000 * 8

i = 0.045 = 4.5% per year

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3 years ago
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4 0
4 years ago
4+ 2 sin x=14-8 sin x for 0° &lt; x &lt; 180°
Neporo4naja [7]

Answer:

x = 90° or π/2 rad

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3 years ago
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Please help asap 40 points
denis23 [38]
Remark
What this is trying to tell you is that you have two factors. Each in turn can be zero, but they cannot be zero at the same time. You will get that kind of question, just not now.

So either - n = 0 or 5n - 4 =0

Solution
- n = 0     Multiply both sides by - 1
(-1)*(-n) = 0*-1
n = 0

5n - 4 = 0   Add 4 to both sides.
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Comment
B and D are both wrong 4/5 is positive. and those list n as -4/5 which is wrong.
A is wrong because the function will not go to 0 if n = -1

Answer
C <<<<Answer

4 0
3 years ago
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