2 years ago

Math models helpppp plss if you know about math models answer this pls

1 answer:

4 0

Answer:

A mathematical model is a description of a system using mathematical concepts and language. The process of developing a mathematical model is termed mathematical modeling. Mathematical models are used in the natural sciences and engineering disciplines, as well as in non-physical systems such as the social sciences.

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Which answer choice represents an equivalent number sentence that uses the associative property to rewrite "[(-4) + (-3)] +-5"?

AVprozaik [17]

Answer:

Your answer: B & A

If you had to choose one I would say please put A

Step-by-step explanation:

Hope this helped : )

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2 years ago

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The cost for a certain music plan is $9.99 per year plus $0.25 per song you downloaded. If you paid $113.74 one year, find the n

vlabodo [156]

They downloaded 415 songs. You can find this solution if you subtract 9.99 from 113.74 then divide that answer by 0.25

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2 years ago

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Consider the equation ay'' + by' + cy = d, where a, b, c, and d are constants. (a) find all equilibrium, or constant, solutions

Orlov [11]

Rewrite equation so that it is homogeneous .
$ay'' +by' + cy = 0$

Solve characteristic equation:
$ar^2 +br + c = 0 \\ \\ r = \frac{(-b) \pm \sqrt{b^2 -4ac}}{2a}$

The solutions to the homogeneous equation are:
$y = k_1 e^{r_1 t} + k_2 e^{r_2 t}$

Finally you need the constant term in "cy" to equal 'd' to satisfy the particular solution.
$y= k_1 e^{r_1 t} + k_2 e^{r_2 t} + \frac{d}{c}$

4 0

3 years ago

What is the measure of _C?

Pani-rosa [81]

Answer:

70°

Step-by-step explanation:

A+B+C=180°

70°+40°+C=180°

C=180°-110°

C=70°

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