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Nikolay [14]
2 years ago
6

I cant figure this out

Mathematics
1 answer:
Rudik [331]2 years ago
6 0

Answer:

x = 2 or x = -1/4

Step-by-step explanation:

Let's solve your equation step-by-step.

4x2−7x−2=0

For this equation: a=4, b=-7, c=-2

4x^2+−7x+−2=0

Step 1: Use quadratic formula with a=4, b=-7, c=-2.

x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}

x=\frac{-(-7)\pm\sqrt{(-7)^2-4(4)(-2)} }{2(4)}

x=\frac{7\pm\sqrt{81} }{8}

x = 2 or x = -1/4

<u>Answer:</u>

x = 2 or x = -1/4

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Yanka [14]

Answer:

m = 8

Step-by-step explanation:

5(m+5)=7m+9   (distribute & evaluate parenthesis)

5(m)+5(5)=7m+9

5m + 25 = 7m + 9  (move all m-terms to one side and constants to the other)

5m - 7m = 9 - 25  (evaluate both sides)

-2m = -16 (divide both sides by -2)

m = (-16) / ( -2) = 8

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Answer:

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Step-by-step explanation:

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3 years ago
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Use deductive reasoning to show that the following procedure always produces the number 6. Procedure: Pick a number. Add 4 to th
Flauer [41]

Answer:

procedure always produces 6

Step-by-step explanation:

Let 'n' be the unknown number

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multiply the sum by 3.

multiply the sum n+4 by 3

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Now subtract 6, so we subtract 6 from 3n+12

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3 years ago
(1+5i) + (-8+i) ? <br> Need answer and steps
Shtirlitz [24]

Answer:

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Step-by-step explanation:

simplyifying this we get

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= 6i-7

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7 0
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