3 years ago

Factor Completely: 3x^2 + 21x + 36

Mathematics

1 answer:

ELEN [110]3 years ago

7 0

So, the ans is A.........

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Step-by-step explanation:

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1 year ago

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Step-by-step explanation:

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15 points! What is the scale factor of the dilation?

maw [93]

Answer: $\frac{1}{2}$

Step-by-step explanation:

Use the formula for calculate the distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Calculate the distance AB. Substitute the coordinates into the formula. Then:

$d_{AB}=\sqrt{(8-0)^2+(8-(-7))^2}$

$d_{AB}=17$

Calculate the distance A'B'. Substitute the coordinates into the formula. Then:

$d_{A'B'}=\sqrt{(2-6)^2+(1-5-(-6))^2}$

$d_{A'B'}=\frac{17}{2}$

As you can see, the distance A'B' is the distance AB multiplied by 1/2. Therefore, this is the scale factor.

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