2 years ago

Simplify the radical expression below: Square root of 80

Mathematics

2 answers:

marta [7]2 years ago

8 0

Answer:

$4\sqrt{5}$

Step-by-step explanation:

$\sqrt{80}$

$\sqrt{16} \sqrt{5}$

$4\sqrt{5}$

Zarrin [17]2 years ago

8 0

√
4
2
⋅
5
4
2
⋅
5
Pull terms out from under the radical.
4
√
5
4
5
The result can be shown in multiple forms.
Exact Form:
4
√
5
4
5
Decimal Form:
8.94427190
…

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Irina18 [472]

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3 0

2 years ago

A person is strolling along a moving walkway at a constant velocity of +1.00 m/s with respect to the walkway, which moves at a c

Bezzdna [24]

Refer to the diagram shown below.

The velocity of the person on the walkway relative to the ground is the velocity of the walkway (relative to the ground) plus the velocity of the person relative to the walkway.
It is
1.0 + 0.5 = 1.5 m/s

The person on the ground moves at - 0.2 m/s, which is in the opposite direction to that of the walkway and the person on the walkway.
Therefore the velocity of the person on the walkway relative to the person on the ground is
105 - (-0.2) = 1.7 m/s

Answer: 1.7 m/s