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
Fudgin [204]
2 years ago
9

Please help!! Urgent! Due soon! - A bedroom is initially squat-shaped with each side x feet long. The room is then expanded so t

hat the length of the room is increased by 3 feet, and the width increased by 4 feet. Choose the expression which represents how much bigger the area of the new bedroom is than the old bedroom.

Mathematics
1 answer:
Masja [62]2 years ago
5 0

Answer:

The second one; x²+7x+12

Step-by-step explanation:

So, since the beginning lengths of the square is x and x, the area of the square is x².

But then, you add 3 to one length, so that side is now (x+3), and then you add 4 to the width, so that is now (x+4).

Finally, you would multiply them together to get the equation you would use to find the new area.

For this, you would cross-multiply everything together; the x in the length by the x in the width, the x in the length by the 4 in the width, the 3 in the length by the x in the width, and then the 3 in the length by the 4 in the width. Now, all you have to do is add all of these together to get your answer.

Here's the work:

(x+3)(x+4)\\x^{2}+3x+4x+12\\x^{2}+7x+12

You might be interested in
Fred the clown can create 20 animal balloons every 15 minutes.
jok3333 [9.3K]
8 ( 20divided by 15=1.333 then times that by6)
And
60 (triple 15)
8 0
2 years ago
Read 2 more answers
Can someone help me out on this?
a_sh-v [17]

Answer:

<NMP and <QPR

Step-by-step explanation:

Look up corresponding angle examples. these angles are corresponding.

4 0
2 years ago
What is the distance from point A to point D on the number line?
mrs_skeptik [129]
The answer would be 3.5
7 0
3 years ago
Isabella went into a movie theater and bought 3 drinks and 10 pretzels, costing a total of $54.50. Jason went into the same movi
ruslelena [56]

The price of 1 drink is $ 4 and price of 1 pretzel is $ 4.25

<em><u>Solution:</u></em>

Let d" be the price of 1 drink

Let "p" be the price of 1 pretzel

Given that, Isabella went into a movie theater and bought 3 drinks and 10 pretzels, costing a total of $54.50

<em><u>Therefore, we can frame a equation as,</u></em>

3 x price of 1 drink + 10 x price of 1 pretzel = 54.50

3 \times d + 10 \times p = 54.50

3d + 10p = 54.5 ---------- eqn 1

Jason went into the same movie theater and bought 9 drinks and 5 pretzels, costing a total of $57.25

9 x price of 1 drink + 5 x price of 1 pretzel = 57.25

9 \times d + 5 \times p = 57.25

9d + 5p = 57.25 ---------- eqn 2

<em><u>Let us solve eqn 1 and eqn 2</u></em>

Multiply eqn 1 by 3

9d + 30p = 163.5 ----- eqn 3

<em><u>Subtract eqn 2 from eqn 3</u></em>

9d + 30p = 163.5

9d + 5p = 57.25

( - ) -----------------------

25p = 106.25

p = 4.25

<em><u>Substitute p = 4.25 in eqn 1</u></em>

3d + 10(4.25) = 54.5

3d + 42.5 = 54.5

3d = 54.5 - 42.5

3d = 12

d = 4

Thus price of 1 drink is $ 4 and price of 1 pretzel is $ 4.25

4 0
3 years ago
Which is equivalent to sin-1(–0.4)?
Gekata [30.6K]
–2.50 –0.60 –0.41 –0.39
5 0
3 years ago
Read 2 more answers
Other questions:
  • Hannah has a jar filled with 150 coins made up of quarters and nickels. The total value of the coins is $28.30. Let x represent
    12·1 answer
  • How would I simplify <br> 7 - 2 (3 - 8x)
    14·1 answer
  • Hat is he probability of pick 1 green marble from a bag with 7 green and 8 blue marbles
    15·1 answer
  • Slope = 3/2, (2,7) is on the line
    7·2 answers
  • A factory makes orange paint by mixing red paint and yellow paint in the ratio 7:2. The factory makes 2700 litres of orange pain
    11·1 answer
  • The radius of a cylindrical gift box is ​(3x+1​) inches. The height of the gift box is twice the radius. What is the surface are
    6·1 answer
  • guys is this answer is 44.8 or is it 21. It’s square roots and cube roots can someone please help mees
    6·1 answer
  • Use a recursive function for the geometric sequence 2, -4, 8, -16 to represent the 9th term. brainly
    6·1 answer
  • Which of the following is NOT a polynomial?
    8·1 answer
  • How to calculate all possible combinations.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!