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olga nikolaevna [1]
4 years ago
11

Simplify this radical. V84 2/21 242 4/21 4/42

Mathematics
2 answers:
dalvyx [7]4 years ago
5 0

Answer:

2√21

Step-by-step explanation:

√81 is √4 times √21

Since √4 is a perfect square, √4 = 2

We are left with 2 times √21

2√21

iragen [17]4 years ago
5 0

Answer:

2√21

Step-by-step explanation:

√84

84 can be written as 4 × 21.

√(4 × 21)

Distribute the square root to both terms.

√4 × √21

4 is a perfect square.

2 × √21

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Answer:

y = -2x - 1

Step-by-step explanation:

Formula is y = mx + b

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slope = change in y/change in x = (-1 - 3) / (0 - -2) = -4/2 = -2

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Y_Kistochka [10]

Answer:

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Step-by-step explanation:

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