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faust18 [17]
3 years ago
12

What’s the surface area and the formula for it?

Mathematics
1 answer:
anastassius [24]3 years ago
5 0

Answer:

1440cm^{2}

Step-by-step explanation:

SA=2lw+2lh+2wh - Formula

SA=2(12×20)+2(12×15)+2(20×15)

SA=(2×240)+(2×180)+(2×300)

SA=480+360+600

SA=1440

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<img src="https://tex.z-dn.net/?f=-6x%5E4-3x%5E2y%5E2%20%2B%205y%5E4" id="TexFormula1" title="-6x^4-3x^2y^2 + 5y^4" alt="-6x^4-3
Mashutka [201]

Answer:

the answer to the question is 8x⁴- 5x²y² - 6y⁴  

Step-by-step explanation:

the normal way of using BODMAS is apply to all polynomial equations.

subtracting  -6x⁴- 3x²y² + 5y⁴ from 2x⁴ - 8x²y² - y⁴.

polynomial of the same degree is very easy to calculate. this equation is having the same degree of polynomial all through, therefore:

  Applying Bracket to the equation

   2x⁴ - 8x²y² - y⁴- ( -6x⁴- 3x²y² + 5y⁴)

  Open the bracket

   2x⁴ - 8x²y² - y⁴ +6x⁴+3x²y² - 5y⁴

  collects the likes terms

   2x⁴ +6x⁴- 8x²y² +3x²y² - 5y⁴  - y⁴

  The final answer is =

   8x⁴- 5x²y² - 6y⁴  

6 0
4 years ago
Need helppp!! an explanation appreciated!
AysviL [449]

Answer: Thanks  can i get my first brainilst

Step-by-step explanation: its d they flippend the grid around the answer is D

8 0
3 years ago
A store is having a sale on jelly beans and almonds. For 2 pounds of jelly beans and 5 pounds of almonds, the total cost is $10
pickupchik [31]
 For this question it is going to be 80 $.
7 0
3 years ago
Help please!!,,,,,,,,
ipn [44]

Answer:

Question #3: Answer = 31

Step-by-step explanation

• Plug in 3 for x

• Plug in -4 for y

| -3(3)² + 2(-4) | -(3)(-4)

From here, simplify. Don't forget to use PEMDAS!

| -27 +8 | + 12

| -19 | + 12

19 + 12

31

Use this same method to solve for Question #2!

6 0
3 years ago
PLEASE HELPPPPP I NEED IT RIGHT THIS MINUTE PLEASEEEEEEEEEEEEEEEEEEEEEEEEE
Nana76 [90]

Answer:

The answer is 3

Step-by-step explanation:

1/4(16 + 4)-2 = 3

Hope this helped ya

7 0
3 years ago
Read 2 more answers
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