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zvonat [6]
3 years ago
5

50 points!! Please help!! Will mark brainliest and random answers will be reported

Mathematics
2 answers:
irina [24]3 years ago
6 0

Answer:

x = 26

Step-by-step explanation:

<em>The</em><em> </em><em>exterior</em><em> </em><em>angle</em><em> </em><em>=</em><em> </em><em>the</em><em> </em><em>sum</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>other</em><em> </em><em>two</em><em> </em><em>angles</em>

5x - 2 = 2x + 76

3x = 78

x = 26

Zarrin [17]3 years ago
5 0
X is 26 i think :) hope this helps
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Which of the following is not a polynomial?
nignag [31]

Answer:

A

Step-by-step explanation:

A is not a polynomial as the power of x is less than one

3 0
2 years ago
Which correlation coefficient will most likely describe the relationship between frequency of teeth brushing and the number of c
abruzzese [7]

Answer:

The correct approach is "-62". A further explanation is described below.

Explanation:

  • A dependent variable could be seen since the blackheads become triggered whenever some substance or material is deposited between some of the teeth.
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3 0
2 years ago
Pls answer ASAP<br> 5 extra points
Leona [35]

Answer:

The answer is B.

Step-by-step explanation:

Any percentage is a number divided by 100 . So 0.4%=0.4100 . Dividing 0.4 by 100 gives 0.004 .

5 0
3 years ago
9. Five times a number is the same as the number added to five. What is the<br> number?
Alenkinab [10]
Let x be the number

5x = x + 5

subtract x from both sides

5x - x = 5

4x = 5

Divide both sides by 4

4x/4 = 5/4

x = 5/4

=======

Check:

5 * (5/4) = (5/4) + 5

25/4 = 1.25 + 5

6.25 = 6.25





Hope it helps . Note that I am a sixth grade student and I don’t know anything . I got help from somebody
4 0
3 years ago
DIG DEEPER! Solve the<br> 2x – y + 3z = -1<br> x + 2y - 4z = -1<br> y -- 2z = 0<br> The solution is
vovangra [49]

Answer:

x = - 1, y = 2, z = 1

Step-by-step explanation:

Given the 3 equations

2x - y + 3z = - 1 → (1)

x + 2y - 4z = - 1 → (2)

y - 2z = 0 → (3)

Add (1) and (3) term by term

2x + z = - 1 → (4)

Multiply (1) by 2

4x - 2y + 6z = - 2 → (5)

Add (2) and (5) term by term

5x + 2z = - 3 → (6)

Multiply (4) by - 2

- 4x - 2z = 2 → (7)

Add (6) and (7) term by term

x = - 1

Substitute x = - 1 into (4)

- 2 + z = - 1 ( add 2 to both sides )

z = 1

Substitute x = - 1, z = 1 into (2)

- 1 + 2y - 4 = - 1

- 5 + 2y = - 1 ( add 5 to both sides )

2y = 4 ( divide both sides by 2 )

y = 2

solution is (x, y, z ) = (- 1, 2, 1 )

7 0
3 years ago
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