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3 years ago

Eight more than the quotient of a number and -5 is less than or equal to 6

1 answer:

5 0

N/-5 + 8 < 6
subtract 8 from both sides.
n/-5 < -2
n represents 1.
1n/-5 < -2
multiply each side by the reciprocal.
1n/ -5 x -5/1n < -2 x -5/1n
n = 10

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3 years ago

Alex, Bob, and Claudia split 126 cm wire evenly among themselves. They then proceeded to cut their pieces of wire into smaller,

Westkost [7]

<h3>Answer:</h3>

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18 cm

<h3>Step-by-step explanation:</h3>

If Alex cut his wire 18 times, he ended up with 19 equal pieces. He kept 7, so has 7/19 of his 1/3 of the wire.

Bob cut his wire 20 times, so ended up with 21 pieces, of which he kept 9. So he has 9/21 = 3/7 of his 1/3 of the wire.

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4 years ago

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3 years ago

Substitute the values for a, b, and c into b2 – 4ac to determine the discriminant. Which quadratic equations will have two real

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Answer: $0=2x^2-7x-9\\0=4x^2-3x-1\\0=x^2-2x-8$

Step-by-step explanation:

We know that the standard quadratic equation is ax^2+bx+c=0

Let's compare all the given equation to it and , find discriminant.

1. a=2, b= -7, c=-9

$b^2-4ac=(-7)^2-4(2)(-9)=49+72>0$

So it has 2 real number solutions.

2. a=1, b=-4, c=4

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So it has only 1 real number solution.

3. a=4, b=-3, c=-1

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So it has 2 real number solutions.

4. a=1, b=-2, c=-8

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So it has 2 real number solutions.

5. a=3, b=5, c=3

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Thus it does not has real solutions.

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