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borishaifa [10]
3 years ago
10

How do you work out question B

Mathematics
1 answer:
hammer [34]3 years ago
5 0
Angle ODC=20°
Angle OCD=90° because line OC is the radius and when the radius meets a tangent, it is always 90°.
Angle COD=180-90-20
Angle COD=70°
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Burka [1]
The answer is x=4. 
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Subtract 6x from one side and then the other side 2x-5=3 
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A store sells six cupcakes for $7. How much do 18 cupcakes cost?
ollegr [7]

Answer:

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Step-by-step explanation:

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irakobra [83]

Answer:

mean: $837.50; median: $810; mode: $810; range: $645

Step-by-step explanation:

Discounted prices are given as:

$640, $810, $755, $810, $1175, $900, $1080, $530

a. Mean = Sum of the Number of Term ÷ Total number of Terms

Total number of term = 8

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b) Median.

$640, $810, $755, $810, $1175, $900, $1080, $530

The first step is to rearrange the discounted prices =

$530, $640, $755, $810, $810, $900, $1080, $1175

Second step is to find the number in the middle

$530, $640, $755, )$810, $810, ($900, $1080, $1175

= ($810 + $810) ÷ 2

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c) Mode

This is calculated as the prices that occurs the most or more than once amongst the Discounted prices.

Discounted prices = $530, $640, $755, $810, $810, $900, $1080, $1175

Price that occurs more than once = $810.

Mode = $810

d. Range

This is calculate as the Highest Discounted price - Lowest Discounted price.

Highest Discounted price = $1175

Lowest Discounted price =$530

Range = $1175 - $530

= $645

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