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Arada [10]
3 years ago
11

Do any of y'all know how to do this I'm so confused and I need help ​plz

Mathematics
1 answer:
nekit [7.7K]3 years ago
8 0

Answer:

the 2nd

Step-by-step explanation:

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Solve by factoring: 2x2 - 5x - 12 = 0
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Step-by-step explanation:

2 {x}^{2}  - 5x - 12

2 {x}^{2}   - 8x  + 3x - 12

2x(x - 4) + 3(x - 4)

2x  + 3 = 0 \:  \: x - 4 = 0

x =  \frac{ - 3}{2}  \:  \: x =4

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3 years ago
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Solve by the addition method
Sladkaya [172]
Answer is no solution I believe
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3 years ago
-3z+8=2z-12 what is the answer?
Gre4nikov [31]

Answer:

Step-by-step explanation:

Simplifying

-3a + 8 = 2z + -12

Reorder the terms:

8 + -3a = 2z + -12

Reorder the terms:

8 + -3a = -12 + 2z

Solving

8 + -3a = -12 + 2z

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-8' to each side of the equation.

8 + -8 + -3a = -12 + -8 + 2z

Combine like terms: 8 + -8 = 0

0 + -3a = -12 + -8 + 2z

-3a = -12 + -8 + 2z

Combine like terms: -12 + -8 = -20

-3a = -20 + 2z

Divide each side by '-3'.

a = 6.666666667 + -0.6666666667z

Simplifying

a = 6.666666667 + -0.6666666667z

3 0
3 years ago
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Find the surface area of the cylinder
Stels [109]

Answer:

Step-by-step explanation:

مرحبًا ، أود أن أحاول مساعدتك في عملك المدرسي. إذا كنت تستطيع أن تشرح أكثر فأنا أقدر ذلك.

3 0
3 years ago
determine whether a parallelogram with vertices A(-1, -2), B(-2, 0), C(0, 1), and D(1, -1) is a rectangle, rhombus, or square. G
olga55 [171]

Answer:

Here, the coordinates aren't telling special characteristic of any shape, so it would be Paralleogram

In short, Your Answer would be Option B

Step-by-step explanation:

8 0
3 years ago
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