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Hoochie [10]
3 years ago
5

I need help with number 18 please.

Mathematics
1 answer:
BartSMP [9]3 years ago
3 0
Well I'll just make sure your points aren't waisted! what grade is this math?
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Write the equation of the graph in slope-intercept form (y = mx + b).​

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Evaluate the expression for the given value.<br><br> 3x(x−2), when x=7 .
UkoKoshka [18]

Answer:

\huge\boxed{Answer\hookleftarrow}

Given,

x = 7

Substitute the value of 'x' in the equation 3x (x - 2).

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3x(x - 2) \\  = 3 \times 7(7 - 2) \\  = 21(5) \\ =  21 \times 5 \\  = 105

<u>Second way :-</u>

3x(x - 2) \\ = 3x {}^{2}  - 6x \\ = 3 \times (7) {}^{2}  - 6(7) \\ = (3 \times 49) - (6 \times 7) \\  = 147 - 42 \\  = 105

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8 0
3 years ago
Simplify 247+13 all the work please​
mel-nik [20]

Answer:

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Step-by-step explanation:

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melisa1 [442]

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=24x+3y

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Combine Like Terms:

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3 0
4 years ago
Read 2 more answers
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