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Otrada [13]
3 years ago
10

Convert –2y2 + x – 4y + 6 = 0 into standard form.

Mathematics
2 answers:
Ne4ueva [31]3 years ago
5 0

Answer:

x = 2(y + 1)^2 – 8

Step-by-step explanation:

B in edgen2021

Rufina [12.5K]3 years ago
4 0

Answer:A

Step-by-step explanation:

X=2(y+1)^2-6

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Which ordered pair is a solution of the equation? 7x-2y=-5
saul85 [17]

answer X= 5 over 7 and 2 over 7y step by step explaination add 2y on both sides u cancelled -2y and positive 2y u bring down 7X u get 7X=-5+3 then u divide and u get that answer yw have a nice day mark me brainliest

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0

Step-by-step explanation:

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3 years ago
Write 0.07131 correct to 3 decimal places
lesantik [10]
The first decimal place has the digit 0


the second decimal place has the digit 7

the third decimal place has the digit ....either 1 or 2.

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Convert (-6, -6) from Cartesian coordinates to polar coordinates. Round the length to the nearest 0.01 Express the
Neko [114]

9514 1404 393

Answer:

  (8.49; 225°)

Step-by-step explanation:

The angle is a 3rd-quadrant angle. The reference angle will be ...

  arctan(-6/-6) = 45°

In the 3rd quadrant, the angle is 45° +180° = 225°.

The magnitude of the vector to the point is its distance from the origin:

  √((-6)² +(-6)²) = √(6²·2) = 6√2 ≈ 8.4859 ≈ 8.49

The polar coordinates can be written as (8.49; 225°).

_____

<em>Additional comment</em>

My preferred form for the polar coordinates is 8.49∠225°. Most authors use some sort of notation with parentheses. If parentheses are used, I prefer a semicolon between the coordinate values so they don't get confused with an (x, y) ordered pair that uses a comma. You need to use the coordinate format that is consistent with your curriculum materials.

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3 years ago
Is -9, -4, 1 and 6 arithmetic
ra1l [238]

Answer:

Yes. It is an arithmetic sequence.

Step-by-step explanation:

The sequence would be add 5 every time.

-9 + 5 = -4

-4 + 5 = 1

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3 years ago
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