How do you use an equation to model and solve a real-world problem?

1 answer:

7 0

Here's an example sally went to the store and got 13 apples when she got home her family ate 3 of the apples sally decides to go back to the store and get 5 more apples and when she returns home 3 more apples are gonna how many apples does sally have? the equation would be 13-3+5-3=12 so she has 12 apples and this represents the real world

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Line A has a slope of 4. Line B has a slope of 1/4.

schepotkina [342]

The correct answer is actually (a) because rate of change is x/y (or that's how I learned it) then the more big the slope the bigger the rate of change

6 0

2 years ago

Read 2 more answers

Evaluate (x^3-x^2-3x+8)+(2x^3+3x^2+x-7)

dolphi86 [110]

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Answer: 3x^3+2x^2-2x+1

Explanation:

x^3 + 2x^3 - x^2 + 3x^2 -3x + x + 8 - 7 = 3x^3+2x^2-2x+1

I hope this helped!

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- Zack Slocum

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4 0

2 years ago

B) A solid has volume defined by<br> V = 4x3 – 12x²y + 9xy2. Identify<br> the type of solid.

Ymorist [56]

You can factor the formula for the volume as

$V = 4x^3-12x^2y+9xy^2 = x(2x-3y)^2$

So, your solid could be a prism. Its base is a square with side $2x-3y$ and height $x$ .

So, its volume would be

$(2x-3y)\cdot (2x-3y) \cdot x = x(2x-3y)^2 = 4x^3-12x^2y+9xy^2$

8 0

2 years ago

For the polynomial –2m2n3 + 2m?n3 + 7n2 – 6m4 to be a binomial with a degree of 4 after it has been fully simplified, which must

Vaselesa [24]

Answer:

Option (c) is correct.

power of m has to be 2.

Step-by-step explanation:

Given : Polynomial $-2m^2n^3+2m^{(x)}n^3+7n^2-6m^4$

We have to find the value of x so that the given polynomial has to be a binomial with a degree of 4 after it has been fully simplified.

Consider the given polynomial $-2m^2n^3+2m^{(x)}n^3+7n^2-6m^4$

We call a polynomial a binomial if it has two terms.

And for degree 4 the greatest power of variables in an term must have to be 4.

Thus, for given polynomial to be a binomial with a degree of 4.

The degree of $-2m^2n^3$ and $2m^{x}n^3$ has to be same so that they get cancel out and we are left with two terms and $-6m^4$ will have the highest degree 4.