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allsm [11]
3 years ago
11

Pls help!! I need the answer immediately

Mathematics
1 answer:
Strike441 [17]3 years ago
4 0

Answer:

i). x³ + 9x² + yz - 15

ii). -21m³np - 8p⁵q + mnp + 4mn + 100

Step-by-step explanation:

Question (38)

i). Two expressions are -5x² - 4yz + 15 and x³+ 4x²- 3yz

  By subtracting expression (1) from expression (2) we can the expression by addition which we can get expression (1).

 (x³+ 4x²- 3yz) - (-5x² - 4yz + 15) = x³ + 4x² - 3yz + 5x² + 4yz - 15

                                                    = x³ + 9x² + yz - 15

ii). -15m³np + 2p⁵q - 6m³pn + mnp + 4mn - 10qp⁵+ 100

  = (-15m³np - 6m³np) + (2p⁵q - 10qp⁵) + mnp + 4mn + 100

  = -21m³np - 8p⁵q + mnp + 4mn + 100

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A(n)=-14+3(n-1)(2)<br> find A(9)
Romashka [77]

Answer: 34

Step-by-step explanation:

Substitute n with 9

-14+3(9-1)(2)

-14+3(8)(2)

= 34

7 0
2 years ago
5. Write the conversion factor for converting meters to centimeters.
BARSIC [14]

Answer:

Third option

O 100 cm

1m

Step-by-step explanation:

100cm \div  {10}^{2}  = 1m \\ hope \: this \: helps.. \\ good \: luck

8 0
3 years ago
Katy has 1 3/8 cups of flour. Her cookie recipe calls for 2 cups of flour. How many more cups of flour does she need for the rec
AleksAgata [21]

Subtract the amount you have from the amount you need:

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Subtract the whole cup first:

2 cups -1 cup = 1 cup

8/8 = 1

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8/8 - 3/8 = 5/8

You need 5/8 cup more

7 0
3 years ago
Read 2 more answers
Please help me asap<br><br><br> ty :)
Art [367]

Answer:

y = 5x+7

Step-by-step explanation:

Parallel lines have the same slope so y = 5x+9 is in slope intercept form

y = mx+b where m is the slope and b is the y intercept

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The new line will have a slope of 5

y = 5x+b

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Substitute this point into the equation

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3 0
2 years ago
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Help<br><br><br><br><br><br>What should be added to –7mn+2m2+3n2<br><br>to obtain 5m2+2mn-9n2​
aalyn [17]

The polynomial to be added to –7mn + 2m² + 3n² to obtain 5m² + 2mn - 9n² is: 3m² - 11n² + 9mn.

<h3>Addition of Polynomials</h3>

Like terms should be combined together when adding polynomials.

Let x represent the polynomial expression that would be added to –7mn + 2m² + 3n² to obtain 5m² + 2mn - 9n².

Therefore:

–7mn + 2m² + 3n² + x = 5m² + 2mn - 9n².

x = 5m² + 2mn - 9n² - (-7mn + 2m² + 3n²)

x = 5m² + 2mn - 9n² + 7mn - 2m² - 3n²

Combine like terms together.

x = 3m² - 11n² + 9mn

Therefore, the polynomial to be added to –7mn + 2m² + 3n² to obtain 5m² + 2mn - 9n² is: 3m² - 11n² + 9mn.

Learn more about polynomial on:

brainly.com/question/24662212

6 0
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