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Stolb23 [73]
3 years ago
15

Need help asap, the answer I picked I think is wrong but idk​

Mathematics
1 answer:
BigorU [14]3 years ago
8 0

Answer:

Reflected about the y-axis and then rotated 90° counterclockwise

Step-by-step explanation:

(x , y) to (-x , y) --> reflected over y-axis

then (-x , y)  --> (-y, -x) -->90 degrees rotation counterclockwise

So answer is the last one

Reflected about the y-axis and then rotated 90° counterclockwise

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Enter an expression equivalent to (3x^2+2y^2-3x) + (2x^2+y^2-2x) - (x^2 + 3y^2 +x)
11111nata11111 [884]

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General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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Step-by-step explanation:

<u>Step 1: Define</u>

(3x² + 2y² - 3x) + (2x² + y² - 2x) - (x² + 3y² + x)

<u>Step 2: Simplify</u>

  1. [Distributive Property] Distribute negative:                                                    3x² + 2y² - 3x + 2x² + y² - 2x - x² - 3y² - x
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  3. Combine like terms (y²):                                                                                   4x² - 3x - 2x - x
  4. Combine like terms (x):                                                                                    4x² - 6x
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If the diameter of a sphere is 1 meter, then what is its surface area? Leave your answer in terms of π= 3.14
umka21 [38]

surface area = 4 x pi x r^2

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4 x 3.14 x 0.5^2 = 3.14 meters^2

3 0
3 years ago
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