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olchik [2.2K]
2 years ago
14

Expand . ( 3x –2 ) 2 please help me with this.

Mathematics
2 answers:
BartSMP [9]2 years ago
4 0

Answer:

6x-4

Step-by-step explanation:

3x•2= 6x

-2•2=-4

Ainat [17]2 years ago
3 0

-------------------------------------------------------------------------------------------------------------

Answer:  \textsf{9x}^2\textsf{ - 12x + 4}

-------------------------------------------------------------------------------------------------------------

Given:  \textsf{(3x - 2)}^2

Find: \textsf{Simplify the expression}

Solution:  It looks like 2 is at the end of the parenthesis where the power would be instead of distributing the number.  If so the following steps would be followed.

<u>Expand</u>

  • \textsf{(3x - 2)}^2
  • \textsf{(3x - 2)(3x - 2)}
  • \textsf{(3x * 3x) + (3x * (-2)) + (3x * (-2)) + (-2 * (-2))}

<u>Simplify</u>

  • \textsf{9x}^2\textsf{ - 6x - 6x + 4}
  • \textsf{9x}^2\textsf{ - 12x + 4}

Therefore, after following the provided information we are able to determine that the expanded form would be 9x^2 - 12x + 4.

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Determine which characteristics are true of vertical angles
liq [111]

Answer:

1, 2 and 4 option - Yes

3 option - No

Step-by-step explanation:

<u>Definition: </u>Vertical angles are the angles opposite each other when two lines cross.

By the definition options

  • they are formed by intersecting lines,
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are true.

Vertical Angles Theorem states that vertical angles are congruent. Thus, option

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Option

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is false, because supplementary are angles that add up to 180°, but vertical angles can have different measures which do not add up to 180°.

7 0
4 years ago
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Can anyone help me with this problem
8_murik_8 [283]
They way I would do it other than with a calculator would be
27 x (90 - 0.5) which is the same as 27 x 89.5
=> 27 x 90 - 27 x 0.5
27 x 90 is (3 x 9) x 90 or 3 x 9 x 90
9 x 90 = 810
3 x 810 = 2430
Then subtract 27 x 0.5, or 27 / 2
2430 - 27 / 2
=> 2430 - 13.5
= 2416.5

Final answer:
2416.5
Hope I helped :)
6 0
3 years ago
You paid $45 for a pair of running shoes after a 40% discount what was the original price of the shoes
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Answer: 63 i think

Step-by-step explanation:

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Sedbober [7]

Answer: 360

Step-by-step explanation: Anytime it asks for the exterior sum it will always be 360

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