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GenaCL600 [577]
3 years ago
9

Given m||n, Find the value of x. Need help.

Mathematics
1 answer:
scoray [572]3 years ago
4 0

9514 1404 393

Answer:

  x = 12

Step-by-step explanation:

The two marked angles are a linear pair, so are supplementary.

  (8x -20)° +(8x +8)° = 180°

  16x -12 = 180 . . . . . . . . . . . divide by °, collect terms

  16x = 192 . . . . . . . . . . . add 12

  x = 12 . . . . . . . . . . . divide by 16

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DUE IN 2 HOURS!!!! Can someone please tell me the answers to 9 and 10 (and 7 and 8 if you can) 15 points!​
gavmur [86]

Answer:

Step-by-step explanation:

7) sorry I wont graph it but just input the points onto the graph

(-5,7)

(-2,1)

(-1, -1)

(2, -7)

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(-3,-5)

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(3,3)

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9)  1/3

5 0
3 years ago
Bob bought 3 packs of model cars he gave 4 cars to ann Bob has 11 cars left how many model cars were in each pack
Harrizon [31]
First add 11 and 4 because you need to know how many he had in total 11+4=15 then divide 15 by 3 and then you have you answer 15/3=5.
There are 5 model cars in each pack.
5 0
3 years ago
One of the angles of a triangle is equal to the sum of the other two. If the ratio of the
konstantin123 [22]

Answer:

the correct answer is 60° and 30°( for the two angles that have the ratio 2:3)

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7 0
3 years ago
Find all the zeroes of the equation(with simple steps).
uysha [10]

<u>Answer-</u>

<em>The zeros are, 5,\ -5,\ 4i,\ -4i</em>

<u>Solution-</u>

\Rightarrow -3x^4+27x^2+1200=0

\Rightarrow -3(x^2)^2+27(x^2)+1200=0

Here,

a = -3, b = 27, c = 1200

So,

x^2=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}

=\dfrac{-27\pm \sqrt{-27^2-4\cdot (-3)\cdot 1200}}{2\cdot (-3)}

=\dfrac{-27\pm \sqrt{729+14400}}{-6}

=\dfrac{-27\pm 123}{-6}

=\dfrac{-27+123}{-6},\ \dfrac{-27- 123}{-6}

=\dfrac{96}{-6},\ \dfrac{-150}{-6}

=-16,\ 25

So,

\Rightarrow x^2=25,\ -16

\Rightarrow x=\sqrt{25},\ \sqrt{-16}

\Rightarrow x=5,\ -5,\ 4i,\ -4i

8 0
3 years ago
Emma correctly answered 21 of 25 questions. what percent of the question did Emma answer correctly?
ziro4ka [17]

Answer:

B

Step-by-step explanation:

21/25

7 0
4 years ago
Read 2 more answers
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