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jeka94
2 years ago
5

What is the greatest common factor (GCF) of 24 and 42?

Mathematics
1 answer:
kykrilka [37]2 years ago
7 0

Answer:

6

Step-by-step explanation:

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What is the value of f(-12) if f(x) = 4x - 12
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Answer:

-36

Step-by-step explanation:

Just plug in -12 for x

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Solve the system by elimination. (Please explain how to do it)
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Apply to Row 2 : Row 2 + Row 1

2x + 2y + 3z = 0

y + 4z = -3

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Apply to Row 3: Row 3 - Row 1

2x + 2y + 3z = 0

y + 4z = -3

y = 5

Apply to Row 3: Row 3 - Row 2

2x + 2y + 3z = 0

y + 4z = -3

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Simplify rows

2x + 2y + 3z = 0

y + 4z = -3

z = -2

<em>Note that the matrix is in echelon form now. The next steps are for back substitution.</em>

Apply to Row 2: Row 2 - 4 Row 3

2x + 2y + 3z = 0

y = 5

z = -2

Apply to Row 1: Row 1 - 3 Row 3

2x + 2y = 6

y = 5

z = -2

Apply to Row 1: Row 1 - 2 Row 2

2x = -4

y = 5

z = 2

Simplify the rows

<u>x = -2</u>

<u>y = 5</u>

<u>z = -2</u>

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3 years ago
Math, i can give you brainliset just help me with the two questions :)
Kay [80]

Answer:

2. the interquartile range is 20

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Step-by-step explanation:

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