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Natali5045456 [20]
3 years ago
11

Ryan invests a sum of money in a savings account with a fixed annual interest rate of 4.31% compounded 12 times per year. After

10 years, the balance reaches $12,855.94. What was the amount of the initial investment?
Mathematics
1 answer:
Lady_Fox [76]3 years ago
6 0
12855.94 = (1 + .0431/12) 12(10)
8361 = P Hope this helps!
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In the country of United States of Heightlandia, the height measurements of ten-year-old children are approximately normally dis
aliya0001 [1]

(A)

P(<em>X</em> < 61.25) = P((<em>X</em> - 55.4)/4.1 < (61.25 - 55.4)/4.1)

… ≈ P(<em>Z</em> ≤ 0.1427)

… ≈ 0.5567

(B)

P(<em>X</em> > 46.5) = P((<em>X</em> - 55.4)/4.1 > (46.5 - 55.4)/4.1)

… ≈ P(<em>Z</em> > -2.1707)

… ≈ 1 - P(<em>Z</em> ≤ -2.1707)

… ≈ 0.9850

5 0
3 years ago
the centers of Marathon County Bayfield County and Dodge County all lie along a straight line if Marathon County is equidistant
Evgen [1.6K]
Marathon C is in the middle.

From Marathon C to Dodge C is 487

Then From Marathon C to Bayfield C is also 487

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5 0
3 years ago
For a quadratic function ƒ(x)=ax2+bx+c, ƒ(−1)&lt;1, ƒ(1)&gt;−1, and ƒ(3)&lt;−4. What could be the sign of a?
denis23 [38]

Answer:

"a" must be negative

Step-by-step explanation:

The slope between points (-1, 1) and (1, -1) is a minimum of (-1-1)/(1-(-1)) = -1.

The slope between points (1, -1 and (3, -4) is a maximum of (-4-(-1))/(3-1) = -3/2.

Thus, as x increases, the slope is decreasing. In order for that to be the case, the value of <em>a</em> must satisfy a < 0.

4 0
3 years ago
⚠️⚠️ OH YOU YEAH YOU DON’T IGNORE THIS ⚠️⚠️
padilas [110]
What problem is it that you need help with?
6 0
3 years ago
I NEED THIS ANSWER FAST !
sleet_krkn [62]

Answer:

12

Step-by-step explanation:

6*2=12

3 0
3 years ago
Read 2 more answers
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