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irakobra [83]
2 years ago
10

Which system of equations has no solution?

Mathematics
2 answers:
allochka39001 [22]2 years ago
6 0

Answer:

B.

{ \binom{7x - 2y = 9}{7x - 2y = 13} }

tatuchka [14]2 years ago
6 0
B has no solution ! Hope this helps, sorry if I’m with wrong
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a 1ft long piece of wire needs to be divided into two pieces which will form the shape of a circle and a square. Determine the l
yan [13]

Answer:

Length of wire for circle is 0.44 ft

Length of wire for square is 0.56 ft

Step-by-step explanation:

Let x is circumference of the circle

then

(1-x) = perimeter of the square

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Find the area of the circle

a =  π(x/2π)^2

a =  π(x^2/4π^2)

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a =  x^2/4π

Find the area of the square:

a =  (1-x/4)^2

a =  (1-2x+x^2)/16

Total area

A =  (x^2/4π)+(1-2x+x^2/16)

A = 4x^2+3.142-6.284x+3.142x^2

A = 7.142x^2-6.284x+3.142

Find the axis of symmetry [x = -b/(2a)]

x =  -(-6.284)/{2.(7.142)}

x =  6.284/14.284

x = 0.44 ft, the piece of wire creating a circle

and

1 - 0.44 = 0.56 ft, the piece of wire creating the square

These lengths should give minimum area of the circle and square together

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Answer:

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Step-by-step explanation:

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Answer:

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