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rewona [7]
3 years ago
15

Select the expression equivalent to (-4x + 4.2y) - (-7x + 3.4y)

Mathematics
1 answer:
Alina [70]3 years ago
4 0

Answer:

3x + 0.8y

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Distributive Property

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

(-4x + 4.2y) - (-7x + 3.4y)

<u>Step 2: Simplify</u>

  1. [Distributive Property] Distribute negative:                                                    -4x + 4.2y + 7x - 3.4y
  2. Combine like terms (x):                                                                                    3x + 4.2y - 3.4y
  3. Combine like terms (y):                                                                                    3x + 0.8y
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Rewrite 5 ⋅ x + 5 ⋅ 8 using parentheses.
Lera25 [3.4K]

Answer:

(5 ⋅ X) + (5 ⋅ 8) =

Step-by-step explanation:

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3 years ago
What two whole numbers is 29−−√ between?: 3 and 4 4 and 5 5 and 6 6 and 7
jolli1 [7]

The two whole numbers are 5 and 6 ⇒ 3rd answer

Step-by-step explanation:

To prove that a square root number lies between which two consecutive integers do that

  • Find a square number less than the number under the root
  • Find a square number greater than the number under the root
  • Find the square root of the square numbers, they will be the two integers that the root lies between them

∵ The number is \sqrt{29}

- Find a square number less than 29

∵ 25 is a square number

∵ 25 is less than 29

- Find a square number greater than 29

∵ 36 is a square number

∵ 36 is greater than 29

∴ 25 < 29 < 36

- Take √ for each number

∴ \sqrt{25} < \sqrt{29} < \sqrt{36}

∵ \sqrt{25}  = 5

∵ \sqrt{36}  = 6

∴ 5 <  \sqrt{29}  < 6

The two whole numbers are 5 and 6

Learn more:

You can learn more about the numbers in brainly.com/question/9621364

#LearnwithBrainly

8 0
3 years ago
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vampirchik [111]
A + C
(-5, -7) is 7 units to the left of point H
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Answer:

Step-by-step explanation:

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Step-by-step explanation:

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