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Annette [7]
3 years ago
11

What value of m makes the system of linear equations mx − y + 3 = 0, (2m − 1)x − y + 4 = 0 have no solution?

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
6 0

Answer:

m ≠1  ( all m in R  except 1 )

Step-by-step explanation:

hello :

mx − y + 3 = 0.....(*)

(2m − 1)x − y + 4 = 0 ....(**)

multiply (*) by : -1       you have :   -mx+y-3=0   ....(***)

                                                    (2m − 1)x − y + 4 = 0 ....(**)

add(***) and(**)  : -mx+ (2m − 1)x+1 =0

(2m-m-1)x+1=0

(m-1)x = -1

this system have no solution  if : m-1≠0   means : m ≠1

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3 years ago
Slove the equation V=(20-2x)(15-2x)(x) for V
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Step-by-step explanation:

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V = x(20(15 + -2x) + -2x * (15 + -2x))

V = x((15 * 20 + -2x * 20) + -2x * (15 + -2x))

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V = x(300 + -70x + 4x2)

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So convert 20/3 ft/second to miles per hour

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7 0
3 years ago
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