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3 years ago

What is 3X minus 6 and how did you get there??? A. 7 B. 9 C. 15 D. 18

Mathematics

2 answers:

Brilliant_brown [7]3 years ago

7 0

Multiply 3x by -6, it gives you -18 so I'm going to say D

svet-max [94.6K]3 years ago

6 0

2x = 14....x = 7 hoped we helped :D

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Write the equation of the line that is the perpendicular bisector of the segment with endpoints (4, 1) and (2, -5)

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Answer: $\bold{y=-\dfrac{1}{3}x-1}$

Step-by-step explanation:

(4, 1) & (2, -5)

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$m=\dfrac{y_2-y_1}{x_2-x_1}\\\\\\m=\dfrac{-5-1}{2-4} = \dfrac{-6}{-2}=3\quad \rightarrow \quad m_{\perp}=-\dfrac{1}{3}\\$

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$Midpoint=\bigg(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\bigg)\\\\\\.\qquad \qquad=\bigg(\dfrac{4+2}{2},\dfrac{1-5}{2}\bigg)\\\\\\.\qquad \qquad=\bigg(\dfrac{6}{2},\dfrac{-4}{2}\bigg)\\\\\\.\qquad \qquad=(3, -2)$

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3 years ago

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Tomtit [17]

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D 3 3/4 and 7/10

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A) 2 3/8 and 3/4

4 goes into 20 evenly but 8 does not

B) 1 5/6 and 2/5

5 goes into 20 evenly but 6 does not

C) 4 1/3 and 1/4

4 goes into 20 evenly but 3 does not

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4 goes into 20 evenly and 10 goes into 20 evenly

YES 3 3/4 = 3 15/20 and 7/10 = 14/20

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4 years ago