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zvonat [6]
3 years ago
11

How to express the radical using the imaginary unit , i. Please help

Mathematics
1 answer:
Hitman42 [59]3 years ago
3 0

Answer:

± 4i\sqrt{5}

Step-by-step explanation:

\sqrt{-80} = \sqrt{16(5)(-1)}

= \sqrt{16} × \sqrt{5} ×\sqrt{-1}

= 4\sqrt{5}i → [ \sqrt{-1} = i ]


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Find the length and perimeter of a rectangle if its width is 19 m and its area is 475 m?.
Allisa [31]

The length of the rectangle is: 25 m

The perimeter of the rectangle is: 88 m

<h3>What is the Area and Perimeter of a Rectangle?</h3>

Area of a rectangle = (length)(width).

Perimeter of a rectangle = 2(length + width).

Give the following:

Width of rectangle = 19 m

Area of rectangle = 475 m²

Find the Length using the area formula:

475 = (length)(19)

475/19 = length

Length of the rectangle = 25 m

Find the perimeter of the rectangle

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Perimeter of the rectangle = 88 m

Thus, the length of the rectangle is: 25 m

The perimeter of the rectangle is: 88 m

Learn more about the area and perimeter of rectangle on:

brainly.com/question/24571594

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