1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
evablogger [386]
2 years ago
13

Dylan uses the expressions (x^2 -2x+8) and (2x^2 + 5x - 7) to represent the length and width of his bedroom. Which expression re

presents the area (lw) of Dylan’s room ?
Mathematics
2 answers:
Oksanka [162]2 years ago
5 0

2x^4 + x^3 - x^2 +54x - 56 expression represents the area of Dylan’s room

<h3><u>Solution:</u></h3>

Given that,

Length of room = x^2 -2x+8

Width of room = 2x^2 + 5x - 7

To find: Expression that the area (lw) of Dylan’s room

Since bedroom is generally of rectangular shape, we can use area of rectangle

<em><u>The area of rectangle is given as:</u></em>

\text {area of rectangle }=\text { length } \times \text { width }

Substituting the given expressions of length and width,

area = (x^2 -2x+8)(2x^2 + 5x - 7)

We multiply each term inside first parenthesis with each term inside the second parenthesis.

So it becomes,

2x^4 + 5x^3 - 7x^2 -4x^3 -10x^2 +14x +16x^2 +40x - 56

Now combine like terms,

2x^4 + x^3 - x^2 +54x - 56

Thus the above expression represents the area of Dylan’s room

Margaret [11]2 years ago
5 0

Answer:

c

Step-by-step explanation:

You might be interested in
Simplify (3n – 2m)2 = ?
Bumek [7]
If you mean (3n-2m)^2 then the answer is
9n^2-12mn+4m^2
So B
4 0
3 years ago
Find the GCF of the monomials: 72x^3 y^2 and 210x^2y^5
denpristay [2]

Answer: The GCF of the monomials is 1.

4 0
3 years ago
Read 2 more answers
Simplify: -|-15|<br><br> please answer correctly i'll give brainliest and 5-star rating.
12345 [234]

Answer:

-15

Step-by-step explanation:

<u>Definition of absolute value: </u>

<em>Distance from zero on a number line. </em>

<em />

Imagine a number line with 0 in the middle of it. Now mark the number 3 on it. Also mark the <em>opposite </em>of 3, which is -3. What is the <u>distance</u> from zero to those 2 points? it's 3.

This is exactly like saying |3| = 3 and |-3| = 3

Even if the number inside absolute value is negative, it <em><u>simplifies</u></em> to the positive of the same number.

_______________________________

So let's talk about your problem.

-|-15|

> the absolute value simplifies to 15

-|-15| = - 15

So that ends up being your answer.

-15

Hope this helps!!!!!!!

7 0
2 years ago
Heyyyyyyyyyy kinda need help asap sooooooo plz :)
ss7ja [257]

Answer:

A, B, C, and D, all options are correct.

A is correct because,

∠2 and ∠3 are corresponding angles.

B is correct because,

∠5 and ∠7 are corresponding angles.

C is correct because,

∠2 and ∠4 are corresponding angles.

D is correct because,

∠5 and ∠6 are alternate interior angles.

Note,

If two lines parallel, then

  • Corresponding angles are equal.
  • Alternate interior angles are equal.
4 0
2 years ago
Read 2 more answers
Add and subtract fraction
salantis [7]

Answer:

1. 23/20 or 1 whole and 3/20

2. 3/10

3. 4/3 or 1 whole and 1/3

4. 1/15

5. 1/2

6. 3/10

5 0
3 years ago
Other questions:
  • A business has a goal of selling 500 bags of chips with 3 days left they have 332 to go .at least how many do they need to avera
    8·1 answer
  • What is the algebra expression for this six feet less than the width
    14·1 answer
  • Probability &amp; Statistics: The Quarantine Puzzle D You are stuck at home watching people walk down the street. Assuming half
    10·2 answers
  • What's your real rate of return if your savings account pays 2.5% interest and inflation is at 1%?
    11·1 answer
  • What is the slope of a line perpendicular to the line whose equation is y = 2x + 5?
    14·2 answers
  • Simplify (3+5p)+(1-5p)
    15·2 answers
  • Ridley bought 3 3/4 yards of blue fabric,12 5/6 yards of red fabric,and 7 2/3 yards of purple fabric.if she paid $7.50 per yard,
    6·1 answer
  • I rlly need help! pleas help quick!
    7·2 answers
  • Helping my friend with some homework please help:/
    13·1 answer
  • Helppppp !!!!!! <br><br>5 ( 3a - 9 ) = ? ​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!