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3 years ago

if 11,100 is invested at 3.1 percent interest compounded monthly, how much will the investment be worth in 19 years?

Mathematics

2 answers:

serious [3.7K]3 years ago

4 0

Answer:

Step-by-step explanation:

Fynjy0 [20]3 years ago

3 0

The formula for compound interest is:
A=P(1+r/n)^(nt)
Where A represents the amount of money in the account after t years, P is the principal (investment), n is the number of compoundings per year, and r is the interest rate in decimal form.
P=11,100
r=.031
n=12 (monthly)
t=19
A=11,100(1+.031/12)^(12*19)
A=11,100(1+. 002583)^(228)
A=11,100(1.002583)^(228)
A=11,100(1.80082)
A=$19,989.10

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Which of the following is not a possible number of solutions when solving a system of equations containing a quadratic and a lin

Kobotan [32]

Answer:

Step-by-step explanation:

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To solve this system we have to clear "y" in both equations, and then equal both equations, then we will have a quadratic function and equal it to zero:

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Then to resolve a quadratic equation we apply Bhaskara's formula:

$x_{1}=\frac{-b+\sqrt{b^2-4ac} }{2a}$

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It usually has two solutions.

But it could happen that $\sqrt{b^2-4ac}$ then the equation doesn't have real solutions.

Or it could happen that there's only one solution, this happen when the linear equation touches the quadratic equation in one point.

And it's not possible to have more than 2 solutions. Then the answer ir 3.

For example:

In the three graphs the pink one is a quadratic function and the green one is a linear function.

In the first graph we can see that the linear function intersects the quadratic function in two points, then there are two solutions.

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In the third graph we can see that the linear function doesn't intersect the quadratic function, then there aren't real solutions.

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3 years ago

the difference of two positive numbers is 8. the larger is twice the smaller decreased by 7. find the two numbers

bulgar [2K]

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3 years ago

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Ann [662]

Answer:

Sum - 2x + 3

term - 2x

Product - 4(2x + 3)

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3 years ago

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koban [17]

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Step-by-step explanation:

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3 years ago

Is this linear relationship proportional or non-proportional? Y = 5x + 1

Tanya [424]

Plug in numbers in for x.
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If you plug in 1 then you get 6. 6/1 is 6
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3 years ago