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
oee [108]
3 years ago
15

100 points!! Brainliest if correct

Mathematics
2 answers:
ollegr [7]3 years ago
8 0

Answer:

SA = 16x^2 +30x+6

Step-by-step explanation:

The surface area is given by

SA = 2 (lw + lh + wh)

The length is 2x, the width is (x+3) and the height is (2x+1)

SA = 2 ((2x)*(x+3) + (2x)*(2x+1) + (x+3) (2x+1))

We need to distribute

SA = 2 ((2x^2+6x) + (4x^2+2x) + (2x^2 +6x+x+3))

Combine like terms

SA = 2 (2x^2+ 4x^2+2x^2+6x+2x  +6x+x+3)

SA = 2 (8x^2+15x+3)

Multiply by 2

SA = 16x^2 +30x+6

lana66690 [7]3 years ago
4 0

Answer:

Step-by-step explanation:

Surface area = sum of all six faces

=2(2x)(x+3) + 2(2x)(2x+1) + 2(x+3)(2x+1)

=4x^2+12x + 8x^2+4x + 4x^2+14x+6

=16x^2 + 30x + 6

You might be interested in
Solve the inequality 2x + 7 - 3x < 13 +2X. You must show your work and describe the graph of the solution on the number line.
kozerog [31]

Cancel equal terms on both sides of inequality

7-3x < 13

move constant to the right side and change its sign

-3x<13-7

subtract the numbers

-3x<6

divide both sides of inequality by -3 and flip the inequality sign

answer is: x>-2

4 0
3 years ago
What is the 20th term of 64,67,70,73,76​
kozerog [31]

Answer:

121

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
3. A rectangular prism has dimensions of 1 , 2, and in. (a) What is the volume of the prism? Show your work and express your ans
Vedmedyk [2.9K]
Although you only put 2 of the 3 needed dimensions into the question, what you would do is multiply the 3 dimensions together and you would get your answer. To find the volume of a rectangular prism you multiply the width, the height, and the length. 
6 0
4 years ago
How to factor -12n -20
leonid [27]

Answer:

-4(3n + 5).

Step-by-step explanation:

The common factor is - 4 so you take this out to give:

-4(3n + 5).

4 0
4 years ago
Read 2 more answers
Could someone please help me with this, I’ve been stressed over it all day, I just have 2 left.
Allisa [31]

Answer:

hi! sorry i don't know the answer but u might want to crop the picture since ur name is at the top u don't have to but just for safety

7 0
3 years ago
Other questions:
  • How do you write 100,203 word form
    12·1 answer
  • The measure of each angle of an equiangular triangle is
    10·2 answers
  • Ahmed is riding the elevator in a building. The building has floors above and below ground level. Ahmed uses the expression belo
    12·1 answer
  • Help these are my last 2 no links pls
    12·2 answers
  • "You'll really dread bedtime when you need to give this little monster a goodnight kiss! The animated Goodnight Kiss Zombie Baby
    10·1 answer
  • Find the volume of the rectangular prism.<br> The volume is cm?<br><br> 8 cm<br> 5 cm<br> 9 cm
    11·2 answers
  • Simplify 2x^2-7x-4/x^2-5x+4
    5·1 answer
  • PLEASE HELP ME OUT I NEED THIS BY TODAY THANKS
    11·1 answer
  • Which parabola will have one real solution with the line y = x – 5? y = x2 x – 4 y = x2 2x – 1 y = x2 6x 9 y = x2 7x 4
    13·1 answer
  • 3^4 + 4 ⋅ 5 = ____. (Input whole numbers only.)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!