3 years ago

Working to

Mathematics

1 answer:

Elan Coil [88]3 years ago

8 0

it might take 19 hours i might be wrong

Step-by-step explanation:

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Find the solutions to the system; y=x^2-3x-1 and y=8x-1

PSYCHO15rus [73]

${x}^{2} - 3x - 1 = 8x - 1 \\ {x}^{2} - 11x = 0 \\ x(x - 11) \\ x = 0 \: or \: x = 11$

When x = 0,
$y = 8x - 1 \\ y = 0 - 1 \\ y = - 1$

When x = 11
$y = 8(11) - 1 \\ y = 87$
x = 0, y = - 1
x = 11, y = 87

Answer is B.

Hope this helps. - M

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2 years ago

Solve negative one equals negative two v plus two-thirds for v.

makkiz [27]

We write it out as an equation:

-1 = -2v + 2/3

Rearrange:
-1 -2/3 = -2v

Multiply by negative to equal positive
1 2/3 = 2v

Make 1 into a fraction
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5/3 = 2v
10/6 = 2v
5/6 = v

The answer is: v equals 5/6

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2 years ago

The tail on Alex's dog is 5 1/4 inches long. This length is between which two inch marks on a ruler

Andrei [34K]

5 and 6 because 5 1/4 = 5.25.
5.25 is less than 6, but greater than 5.

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3 years ago

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Geoff earns $9.25 per hour before taxes, and he works 40 hours per week. Geoff's employer withholds (takes out) 10.65% of geoff'

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Answer:

Step-by-step explanation: