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1 year ago

When is the best time to round a number in a multi-step problem?

Mathematics

1 answer:

Usimov [2.4K]1 year ago

5 0

Answer:

At the end of the multi step problem

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Write a polynomial in standard form that represents the area of the shaded region.

mr_godi [17]

Area of rectangle is $2x^2+x-45$

Step-by-step explanation:

Given:

Length of rectangle = 2x-9

Width of rectangle = x+5

Required:

Area of rectangle

Formula:

$Area\,\,of\,\,rectangle=Length*Width$

Putting values of length and width:

$Area\,\,of\,\,rectangle=Length*Width\\Area\,\,of\,\,rectangle=(2x-9)(x+5)\\Area\,\,of\,\,rectangle=2x(x+5)-9(x+5)\\Area\,\,of\,\,rectangle=2x^2+10x-9x-45\\Area\,\,of\,\,rectangle=2x^2+x-45$

So, Area of rectangle is $2x^2+x-45$

Keywords: Area of rectangle

Learn more about Area of rectangle at:

#learnwithBrainly

3 0

3 years ago

Given f(x) = 3x + 4. Find F-1(7)<br><br> Please help I’ll give you brainiest answer 100points!!!!!

Musya8 [376]

Answer:

f⁻¹(7) = 1

Step-by-step explanation:

Step 1: Write out function

f(x) = 3x + 4

Step 2: Find f⁻¹(x) (or known as inverse f(x))

y = 3x + 4

x = 3y + 4

-3y + x = 4

-3y = 4 - x

y = -4/3 + x/3

Step 3: Plug in 7 into inverse f(x)

f⁻¹(7) = 7/3 - 4/3

f⁻¹(7) = 3/3

f⁻¹(7) = 1

6 0

3 years ago

Write an equation for each translation of Y=|x|.

Digiron [165]

$\boxed{y=\mid x \mid +14}$

<h2>Explanation:</h2>

Let's graph the equation:

$y=\mid x \mid$

Which is the red graph shown below. As you can see this is the pattern of the Absolute Value Function. In order to translate this graph 14 units up, let's add 14 to $\mid x \mid$ . In doing so we get the new function:

$y=\mid x \mid + 14$

So we get a new graph which is the blue one. In order to prove that this is the correct translation, let's take the vertex of the red graph which is the origin. To translate this graph 14 units up implies that each point is shifted 14 units up, so for the vertex of the red graph:

$Vertex \ of \ the \ red \ graph: \\ \\ V(0,0) \\ \\ \\ Vertex \ of \ the \ new \ graph: \\ \\ (0,0+14) \\ \\ (0,14)$

So the new vertex matches the vertex of the blue graph. Finally, the equation for the translation of $y=\mid x \mid$ 14 units up is $y=\mid x \mid +14$

<h2>Learn more:</h2>

Horizontal and vertical shift: brainly.com/question/13774447#

#LearnWithBrainly

6 0

3 years ago

What is the value of 6n - 2 when n =3

denpristay [2]

The awnser is 16 because 6 times 3 is 18 - 2 is 16

5 0

3 years ago

Read 2 more answers

Sally is going furniture shopping using her credit card. If her credit card has a lint of $2,000 and she is currently holding a

Elenna [48]

Although the question is a bit confusing, I believe the answer you are looking for is $2,763. If she can only go 2,000 past what she already has you just simply add it to the amount she does have.

2,000 + 763 = 2,763

Hope I helped!

Have a good day.

4 0

3 years ago