2 years ago

1. Simplify the expression. Assume that

Mathematics

1 answer:

ololo11 [35]2 years ago

5 0

Answer:

b. 6|x|

Step-by-step explanation:

√(36x²) = √36√(x²)= 6|x|

Because √ from the number can be only positive.

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Nimfa-mama [501]

Answer:

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Step-by-step explanation:

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2 years ago

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The equation in standard form is Y=2x-3

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2 years ago

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Answer:

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Step-by-step explanation:

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Answer:

2(5z+7yz+y)

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3 years ago

Solve by substitution<br> -2x+4y+6=0<br> x-5y+3=0

dsp73

$-2x+4y+6=0 \\
x-5y+3=0 \\ \\
\hbox{solve the 1st equation for x:} \\
-2x+4y+6=0 \ \ \ |-(4y+6) \\
-2x=-4y-6 \ \ \ |\div (-2) \\
x=2y+3 \\ \\
\hbox{substitute 2y+3 for x in the 2nd equation:} \\
2y+3-5y+3=0 \\
-3y+6=0 \ \ \ |-6 \\
-3y=-6 \ \ \ |\div (-3) \\
y=2 \\ \\
x-5y+3=0 \\
x-5 \times 2+3=0 \\
x-10+3=0 \\
x-7=0 \ \ \ |+7 \\
x=7 \\ \\
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2 years ago