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3 years ago

21 is what percent of 175?

Mathematics

1 answer:

BlackZzzverrR [31]3 years ago

8 0

Step-by-step explanation:

21/ 175 ÷ 100%

= 0.12 × 100%

= 12%

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harina [27]

Answer:

ABCD is a RHOMBUS or a SQUARE.

Step-by-step explanation:

The coordinates are A(-6, 6), B(-2, 8), C(0, 4), and D(-4, 2).

By DISTANCE FORMULA:

The length of the segment with coordinates X(a,b) and Y(c,d) is given as:

$XY = \sqrt{(c-a)^2 + (d-b)^2}$

Now, similarly, the lengths of the segments are:

$AB = \sqrt{(-2 -(-6))^2 + (8-6)^2}$

$=\sqrt{(4)^2 + (2)^2} = \sqrt{16 + 4} = \sqrt{20}$

⇒ The length of the segment AB = √ 20 units

$BC = \sqrt{(0 -(-2))^2 + (4-8)^2}$

$=\sqrt{(2)^2 + (-4)^2} = \sqrt{4 + 16} = \sqrt{20}$

⇒ The length of the segment BC = √ 20 units

$CD = \sqrt{(0 -(-4))^2 + (2-4)^2}$

$=\sqrt{(4)^2 + (-2)^2} = \sqrt{16 + 4} = \sqrt{20}$

⇒ The length of the segment CD= √ 20 units

$AD = \sqrt{(-6 -(-4))^2 + (6-2)^2}$

$=\sqrt{(-2)^2 + (4)^2} = \sqrt{4 + 16} = \sqrt{20}$

⇒ The length of the segment AD = √ 20 units

$AC = \sqrt{(0 -(-6))^2 + (4-6)^2}$

$=\sqrt{(6)^2 + (-2)^2} = \sqrt{36 + 4} = \sqrt{40}$

⇒ The length of the diagonal AC = √ 40 units

$BD = \sqrt{(-2 +4)^2 + (8-2)^2}$

$=\sqrt{(2)^2 + (6)^2} = \sqrt{36 + 4} = \sqrt{40}$

⇒ The length of the diagonal BD = √ 40 units

Since, here the length of all segments is √ 20 units.

⇒AB = BC = CD = AD = √ 20 units

and Diagonal AC = BD

⇒ ABCD is a RHOMBUS or SQUARE.

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