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xeze [42]
3 years ago
7

The original price of a DVD is $9. The sale price is 80% of the original price. What is the sale price of the DVD.

Mathematics
1 answer:
rjkz [21]3 years ago
5 0
The answer is 1.8 because when you 9-80% you get 1.8
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Rama09 [41]
Domain: {-5, 7}
Range: {-9, 4, 8}
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2 years ago
Analyze the diagram below and answer the question that follows. If 2004-02-01-02-00_files/, what is 2004-02-01-02-00_files/? A.
nadya68 [22]

Option A AY || XV given that A, Y, Z are midpoints of sides XW, VW, XV respectively. This can be obtained by knowing what similar triangles are and finding which sides are proportional.

<h3>Find the correct option:</h3>

Similar triangles: If two triangles have proportional sides the are similar.

For example, if ΔABC and ΔDEF are similar then

\frac{AB}{DE}= \frac{BC}{EF} =\frac{AC}{DF}

∠ABC = ∠DEF and ∠ACB = ∠DFE

Then we can write that, ΔABC ~ ΔDEF

Here in this question,

Since A, Y, Z are midpoints of sides XW, VW, XV

XA = AW

WY = VY

XZ = VZ

To consider sides AY and XV we should take triangles ΔWAY and ΔWXV

\frac{WX}{WA} =\frac{2WA}{WA} = 2  (since A is the midpoint of WX)

\frac{WV}{WY} =\frac{2WY}{WY} = 2  (since Y is the midpoint of WV)  

∠AWY = ∠XWV (reflexive property)

Therefore ΔWAY and ΔWXV are similar triangles

\frac{WX}{WA}= \frac{XV}{AY} =\frac{WV}{WY} = 2

∠WAY = ∠WXV and ∠AYW = ∠XVW

Hence,

AY || XV option A AY || XV given that A, Y, Z are midpoints of sides XW, VW, XV respectively.

 

Learn more about similar triangle here:

brainly.com/question/25882965

#SPJ1

Disclaimer: The question was given incomplete on the portal. Here is the complete question.  

Question: Analyze the diagram below and answer the question that follows. If Z, Y and A are midpoints of ΔVWX what is true about AY and XY?

A. AY || XV

B. 1/2 AY = XV

C. AY = XV

D. AY ≅ XV

 

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2 years ago
What is the product of 3x(x2 4)? x2 3x 4 3x3 4 3x3 12x 3x2 12x.
iVinArrow [24]

Answer:

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Then use the distributive property

SO the final answer would be: 3x^3 +12x

Step-by-step explanation:

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lora16 [44]

Answer:

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Step-by-step explanation:

First of all, the number before the decimal would be the whole number of the fraction.

So, 1\frac{?}{?}

Then, you would put 0.83 over a fraction.

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The equation below represents Function A and the graph represents Function B:
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a)the y-intercept of function A is 9units below the y-intercept of function B

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