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Bumek [7]
3 years ago
9

You deposited $4500 dollars in a savings account that earns a simple interest rate. What interest rate do you need to be paid, i

f you require $5445 after 7 years.
Mathematics
1 answer:
irina [24]3 years ago
7 0
5445 = 4500 i * 7
5445 = 31500i
i = 5445/31,500
i = 0.1729

i = 17.29%

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\sum_{n=1}^{\infty } ((-1^n)/n)x^n<br><br> Find the interval of convergence.
Lorico [155]

Answer:

(-1,1).

Step-by-step explanation:

We need to calculate \lim_{n \to \infty}\frac{| a_{n+1}|}{| a_{n}|} = \frac{1}{R} where R is the radius of convergence.

\lim_{n \to \infty}\frac{\frac{|(-1)^{n+1}|}{|n+1|}}{\frac{|(-1)^{n}|}{|n|}}

\lim_{n \to \infty}\frac{\frac{1}{|n+1|}}{\frac{1}{|n|}}

\lim_{n \to \infty}\frac{|n|}{|n+1|}

Applying LHopital rule we obtaing that the limit is 1. So 1=\frac{1}{R} then R = 1.

As the serie is the form (x+0)^{n} we center the interval in 0. So the interval is (0-1,0+1) = (-1,1). We don't include the extrem values -1 and 1 because in those values the serie diverges.

4 0
3 years ago
Vanessa mane 6 sandwiches for a party and cut all into fourths. How many 1/4- sandwich pieces did she have?
Lady bird [3.3K]

Whenever you cut a sandwich in four parts, you make four small sandwiches out of each sandwich you're cutting.

So, if you have six sandwiches, and make four small sandwiches out of each of them, you'll end up with

6 \cdot 4 = 24 small sandwiches

6 0
3 years ago
I think this is my last one! Will give Brainliest! DUE TODAY!!!Will give everything good and will make smartest answer WITH WORK
const2013 [10]

Answer:

$5

Step-by-step explanation:

m=\frac{y_2 - y_1 }{x_2 - x_1} = \frac{275-300}{5-0} = \frac{-25}{5} = -5

The item is discounted by $5 per week.

4 0
3 years ago
Since Neil Armstrong was the first person to walk on the. moon, the contrapositive is
Romashka-Z-Leto [24]

Answer:

If nobody walked on the moon, then Neil Armstrong didn't

Step-by-step explanation:

The contrapositive flips the sign of "Neil Armstrong"  and the "moon," and also switches their position, so you will switch the hypothesis and conclusion as well

7 0
3 years ago
What is the equation of the line that is parallel to the line 5x + 2Y=12 and passesthrough the point (-2,4) ?
sladkih [1.3K]

Answer:

y = -\frac{5}{2}x - 1

Step-by-step explanation:

5x + 2y = 12

2y = -5x + 12

y = -\frac{5}{2}x + 6

y = mx + b

4 = -\frac{5}{2} ( -2 ) + b

4 = 5 + b

b = -1

y = -\frac{5}{2}x - 1

5 0
3 years ago
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