3 years ago

A line segment AB has the coordinates A (2,3) AND B ( 8,11) . What is the slope of AB?

Mathematics

2 answers:

cricket20 [7]3 years ago

8 0

The answer is ::4/3

andrew11 [14]3 years ago

3 0

Answer:

4/3

Step-by-step explanation:

11 - 3 = 8

8 - 2 = 6

8/6 = 4/3

Rise 4 Run 3

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The relationship between women’s whole-number shoe sizes and foot lengths is an arithmetic sequence, where an is the foot length

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Answer:

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Step-by-step explanation:

Given: Foot length & shoe size in AP.

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From question,

$a_{12}-a_7=11-9.33=1.67$

Also, we know that

$a_{12}=a_7+5d\\5d=a_{12}-a_7\\5d=1.67\\d=\frac{1.67}{5}\\\\d=0.33$

Now, consider

$a_7=a_1+6d\\a_7=a+6d\\a=a_7-6d\\a=9.33-6\times0.33\\a=9.33-1.98\\a=7.35$

Thus using formula of $a_n$ we get,

$a_n=a+(n-1)d\\a_n=7.35+(n-1)\times0.33\\a_n=7.35+0.33n-0.33\\a_n=7.02+0.33n$

Therefore, The explicit formula for Arithmetic Sequence is $a_n=7.02+0.33n$

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