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STALIN [3.7K]
3 years ago
10

Can anybody help me with number 20....just number 20 plz?....thank u

Mathematics
1 answer:
MatroZZZ [7]3 years ago
6 0
The property used in #20 was called 'the distributive property'.

This property gets rid of the parenthesis and also gets the expression more simple. 

x(y+b)
x*y + x*b              ⇔ Notice the change here? 

Answer would be: Distributive property 

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The table below represents the displacement of a horse from its barn as a function of time:
katovenus [111]

A. The y-intercept (b) of a linear equation is obtained when x = 0. Therefore from the given table,

y - intercept = 8

Since at time zero the displacement is 8 ft, this means that the horse was already outside the barn initially.

B. The average rate of change of the function represents the slope of the linear equation (m). This can be calculated using the formula:

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m = (158 – 58) / (3 – 1)

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3 years ago
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3 years ago
How can I solve (b)?
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90/3 parts of silver = 30 times multiplied by
tin = 12 × 30 = 360g
lead = 8 × 30 = 240g

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tin = 12 × 0.5434 = 6.5kg
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