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3 years ago

12

You borrow $3200 to buy new kitchen appliances. The simple interest rate is 5%. You pay the loan off after 4 years. What is the

total amount you paid for the loan?

2 answers:

Aleksandr [31]3 years ago

6 0

It’s $3840.

5% of 3200 is 160. The interest applies for 4 years (160 x 4 = 640), which adds onto the flat 3200, (640 + 3200 = $3840)

trasher [3.6K]3 years ago

4 0

Answer:

$3840

Step-by-step explanation:

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melomori [17]

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The quadratic polynomial with integer coefficients is $y = 81\cdot x^{2}-36\cdot x -19$ .

Step-by-step explanation:

Statement is incorrectly written. Correct form is described below:

<em>Find a quadratic polynomial with integer coefficients which has the following real zeros: </em> $x = \frac{2}{9}\pm \frac{\sqrt{23}}{9}$ <em>. </em>

Let be $r_{1} = \frac{2}{9}+\frac{\sqrt{23}}{9}$ and $r_{2} = \frac{2}{9}-\frac{\sqrt{23}}{9}$ roots of the quadratic function. By Algebra we know that:

$y = (x-r_{1})\cdot (x-r_{2}) = x^{2}-(r_{1}+r_{2})\cdot x +r_{1}\cdot r_{2}$ (1)

Then, the quadratic polynomial is:

$y = x^{2}-\frac{4}{9}\cdot x -\frac{19}{81}$

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