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mariarad [96]
3 years ago
8

1. 8 x (-7)

Mathematics
1 answer:
iogann1982 [59]3 years ago
5 0
Is x a variable in these problems or is x acting as a multiplication sign?
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Please help)Simplify: (r – 7)(r + 7)
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Answer:

Im pretty sure the answer is

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Step-by-step explanation:

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An asteroid is 10^15 miles away from earth, and it is traveling at a speed of 10^5 miles a day.
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Translate the expression: “the difference between twice a number and 23”
kherson [118]

Answer:

23- 2x

Step-by-step explanation:

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7 0
2 years ago
The rectangle below has an area of x^2-15x+56x square meters and a length of x-7 meters.
Gennadij [26K]
Heya \: \: ! \\ \\ \\ Area \: of \: rectangle \: = Length \: \times Width \\ \\ We \: are \: given \: that \: , \\ \\ Length \: = \: \: ( \: x - 7 \: ) \: metres \\ Area \: \: \: \: \: = \: \: \: ( \: {x}^{2} - 15x + 56 \: ) \: square \: meters \\ \\ Therefore \: \: , \: \\ {x}^{2} - 15x + 56 = ( \: x - 7) \times Width \\ \\ Width = \frac{ ({x}^{2} - 15x + 56 )}{(x - 7)} \\ \\ Width = \frac{(x - 7)(x - 8)}{(x - 7)} \\ \\ \\ Width = ( \: x - 8 \: ) \: \: m \: \: \: \: \: \: \: \: \: Ans.
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3 years ago
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