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3 years ago

Can you lose a rank if you dont answer questions for a while?

Mathematics

2 answers:

Ronch [10]3 years ago

7 0

No youll lose it if you answer too many

fiasKO [112]3 years ago

4 0

No You lose ranks by asking questions because it takes away from your points. i think that is

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What is the slope of (2,5) and (5,8)

murzikaleks [220]

Answer:

Slope = 1

Step-by-step explanation:

Slope = change in y/change in x

= (8-5)/(5-2)

=3/3

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3 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

How to write an expression with a negative exponent as an equivalent expression with a positive exponent ??

borishaifa [10]

Answer:

I need points

Step-by-step explanation:

because i do need points

this app is a scam

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1 year ago

Why cannot squares be placed in the hierarchy under trapezoids.

solong [7]

Because the are not the same size

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2 years ago

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Can a parallelogram be one of the cross sections for a rectangular prism and triangular prism?

Andrei [34K]

Answer:

A parallelogram is a four-sided figure that has opposite sides that are parallel and are equal in length. A triangle is not a parallelogram because it does not have four sides, nor parallel sides. Since the cross-section of a triangular prism is a triangle (which cannot be a parallelogram), a parallelogram can never be the cross-section of a triangular prism.

Step-by-step explanation:

hmu if you need anything els

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3 years ago