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Effectus [21]
2 years ago
8

Find the slope of the line containing the points ( a , 1/a ) a n d ( b , 1/b )

Mathematics
1 answer:
xz_007 [3.2K]2 years ago
5 0

Answer:

slope=(y2-y1)/(x2-x1)

=(1/b-1/a)/(b-a)

=((a-b)/ab)/(b-a)

=(a-b)/ab(b-a)

=(a-b)/(-(ab(a-b))

=-1/ab

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Tell me what each angle is in the following triangle: angle 1 is 8x, angle 2 is 2x+3, angle 3: 30 degrees. give me the two answe
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Answer:  117.6° ;  32.4° .
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Note: ALL triangles, by definition, have exactly 3 (THREE) sides and exactly 3 (THREE) angles.   
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             8x + (2x + 3) + 30 = 180 ;
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             8x + 2x + 3 + 30 = 180 ;
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  Combine the "like terms" on the 'left-hand side" of the equation; to simplify:
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         10x + 33 = 180 ; 
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         10x + 33 − 33 = 180 −<span> 33 ;
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 to get:
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         10x    =   147 ;  
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   Now, divide EACH side of the equation by "10" ; to isolate "x" on ONE SIDE of the equation; and to solve for "x" : 
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         10x / 10 = 147 / 10 ; 
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   to get: 
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              x = 14.7 ;
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   → 117.6 + 32.4 + 30 = ? 180 ??
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   → 117.6 + 32.4 = 150  ;   → 150 + 30 =? 180 ?  Yes!
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