3 years ago

Use the distributive property to multiply -7 (2x - 4) I think it's -14x + 28

Mathematics

2 answers:

SashulF [63]3 years ago

5 0

-14x+28 is correct. Good job!

timofeeve [1]3 years ago

4 0

It is-14x + 28 way to go!

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Suppose line segment AB has one endpoint at A(0, 0). What are the coordinates of B if (5, 3) is 1/3 of the way from A to B?

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$B(x_2,y_2)= (20,12)$

Step-by-step explanation:

Given

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Required

Coordinates of B

This question will be answered using line ratio formula;

$(x,y) = (\frac{mx_2 + nx_1}{m + n},\frac{my_2 + ny_1}{m + n})$

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$(5,3) = (\frac{1 * x_2 + 3 * 0}{1 + 3},\frac{1 * y_2 + 3 * 0}{1 + 3})$

$(5,3) = (\frac{x_2 + 0}{4},\frac{y_2 + 0}{4})$

$(5,3) = (\frac{x_2}{4},\frac{y_2}{4})$

Comparing the right hand side to the left;

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$\frac{y_2}{4} = 3$ -- (2)

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Solving (2)

$y_2 = 3 * 4$

$y_2 = 12$

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$B(x_2,y_2)= (20,12)$

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