2 years ago

TRUE OF FALSEEEEEEEEEESSSSSSSSSSSSSS

Mathematics

1 answer:

horrorfan [7]2 years ago

7 0

ITS FALSE HELLLLLOOO

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This is the question: Write down the equation of a circle with centre (0,0) and radius 5.

ANTONII [103]

You almost had it right! remember the equation of a circle is
(x - h)^2 + (y - k)^2 = r^2. the center is (h,k) and r is the radius.

(x - 0)^2 + (y - 0)^2 = 5^2

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hope that helps, God bless!

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3 years ago

If 3 dozen cookies require 1 cup of sugar, write a direct variation equation in two variables that represent this situation. Mak

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In a parallelogram ABCD point K belongs to diagonal BD so that BK:DK=1:4. If the extension of AK meets BC at point E, what is th

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Answer:

$\frac{BE}{EC} =\frac{1}{3}$

Step-by-step explanation:

In the diagram below we have

ABCD is a parallelogram. K is the point on diagonal BD, such that

$\frac{BK}{CK} =\frac{1}{4}$

And AK meets BC at E

now in Δ AKD and Δ BKE

∠AKD =∠BKE ( vertically opposite angles are equal)

since BC ║ AD and BD is transversal

∠ADK = ∠KBE ( alternate interior angles are equal )

By angle angle (AA) similarity theorem

Δ ADK and Δ EBK are similar

so we have

$\frac{AD}{BE} =\frac{DK}{BK}$

$\frac{AD}{BE} =\frac{4}{1}$

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$\frac{BE+EC}{BE}=\frac{4}{1}$ ( BC= BE+EC)

$\frac{BE}{BE} +\frac{EC}{BE}=\frac{4}{1}$

$1+\frac{EC}{BE}=4$

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$\frac{EC}{BE}=\frac{3}{1}$

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3 years ago

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Answer:

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Step-by-step explanation:

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