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nikitadnepr [17]
3 years ago
9

X^2−1.78x, if x=2.78

Mathematics
1 answer:
Readme [11.4K]3 years ago
8 0

Answer:

2.78

Step-by-step explanation:

We are given the expression x^2-1.78x

As we know that x=2.78, we can plug that value into the expression and simplify it

(2.78)^2-1.78(2.78)\\\\7.7284-4.9484\\\\2.78

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Answer:

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Step-by-step explanation:

The square of a number (n) is represented by n². Three times that value is represented by 3n².

The relation "a is subtracted from b" is represented as ...

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When 3n² is subtracted from 54, the appropriate representation is ...

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Solve. x2 + 14 = 9x A) x = 2, x = 7 B) x = 3, x = 5 C) x = −2, x = −7 D) x = −3, x = −5
chubhunter [2.5K]

Answer:

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Step-by-step explanation:

x^2 + 14 = 9x

Subtract 9x from each side

x^2-9x + 14 = 9x-9x

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What 2 numbers multiply to 14 and add to -9

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Using the zero product property

x-7 = 0   x-2 =0

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algol13

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Answer:

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Step-by-step explanation:

A line is in point-slope form when you write down as y-y_0=m(x-x_0) - do not be distracted by the signs, +1 and +5 can both be written as -(-1) or -(-5) rispectively.

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