3 years ago

What did the student do wrong?

Mathematics

1 answer:

sleet_krkn [62]3 years ago

6 0

Answer: GJ is congruant to HK

Step-by-step explanation:

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-Dominant- [34]

Question 20 is 2/11 i believe

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3 years ago

8) ¿Cuál es la diferencia de la siguiente operación?

goldenfox [79]

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2 years ago

Rhombus ADEF is inscribed into a triangle ABC so that they share angle A and the vertex E lies on the side BC . What is the leng

Thepotemich [5.8K]

Answer:

Length of side of rhombus is $x=\frac{ab}{a+b}$

Step-by-step explanation:

Given Rhombus ADEF is inscribed into a triangle ABC so that they share angle A and the vertex E lies on the side BC. We have to find the length of side of rhombus.

It is also given that AB=a and AC=b

Let side of rhombus is x.

In ΔCEF and ΔCBA

∠CEF=∠CBA (∵Corresponding angles)

∠CFE=∠CAB (∵Corresponding angles)

By AA similarity rule, ΔCEF~ΔCBA

∴ their sides are in proportion

$\frac{EF}{AB}=\frac{CF}{AC}$

⇒ $\frac{x}{a}=\frac{b-x}{b}$

⇒ $xb=ab-ax$

⇒ $x(a+b)=ab$

⇒ $x=\frac{ab}{a+b}$

Hence, length of side of rhombus is $x=\frac{ab}{a+b}$

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3 years ago

In Cathy’s garden, 5/6 of the area is planted with flowers. Of the flowers, 3/10 of them are red. What fraction of Cathy’s garde

Leno4ka [110]

50/33 you have to add then mutlyply

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3 years ago

Clare paid full price for an item. Han bought the same item for 80% of the full price. Clare said, I cants believe I paid 125% o

Anettt [7]

Answer:

The statement is True!

Step-by-step explanation:

Clare paid full price for an item.

Let Price of the item = x

Han bought the same item for 80% of the full price.

Han bought it for 0.8x

Clare said, I cants believe I paid 125% of what you paid, Han!

The above statement is True if;

125% of 0.8x = x

1.25 * 0.8x = x

x =x

The statement is True!

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2 years ago