3 years ago

GIVING BRAINLIEST ONLY IF 100% CORRECT-NO GUESSES NO LINKS

1 answer:

7 0

Answer:

b, c, and d

Step-by-step explanation:

b and c are rhombuses and d is a trapezoid. rhombuses are not rectangles, nor are trapezoids.

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kondor19780726 [428]

Answer:

22.8

Step-by-step explanation:

$a^{2} +b^{2} =c^{2} \\20^{2} +11^{2} =x^{2} \\400+121=x^{2}\\\sqrt{521} =x\\\\or\\\\22.8 = x$

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3 years ago

gtnhenbr [62]

For my answer, I got -47 1/2

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3 years ago

zlopas [31]

5+3n=20

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3 years ago

garri49 [273]

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2 years ago

Stells [14]

Answer:

$\huge\boxed{width=12cm}$

Step-by-step explanation:

$l-length\\w-width\\P-perimeter$

The formula of perimeter of the rectangle:

$P=2l+2w=2(l+w)$

Substitute:

$l=6w\\\\P=168cm$

$168=2(6w+w)\\168=2(7w)\\168=14w\qquad|\text{divide both sides by 14}\\\\\dfrac{168}{14}=\dfrac{14w}{14}\\\\12=w\Rightarrow w=12(cm)$

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3 years ago