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3 years ago

PLS HELP, i have 25 minuted on this quizlet worth 44% of my grade, so ill give 44 points.

Mathematics

2 answers:

Over [174]3 years ago

8 0

Answer:

no.7 315in3

no.6 3780cm3

no. 4 is 20

Step-by-step explanation:

i think that is right

cupoosta [38]3 years ago

3 0

#8 you divide the coordinate sides. So divide 15/6= 2.5 and divide 10/4= 2.5 So, you take the 8 and multiply it by 2.5 and get 20 so, x=20

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Answer:

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Step-by-step explanation:

The midpoint of the points $(x_1,y_1)$ and $(x_2,y_2)$ is given by the following formula:

$(x_m,y_m)=(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2} )$

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We know that the midpoint is (-15, 2) and an endpoint is (-12, 11). Substituting the information we have gives:

$(-15,2)=(\frac{x_1-12}{2}, \frac{y_1+11}{2} )$

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$-15=\frac{x_1-12}{2} \\\\\frac{x_1-12}{2}=-15\\\\\frac{2\left(x_1-12\right)}{2}=2\left(-15\right)\\\\x_1-12=-30\\\\x_1-12+12=-30+12\\\\x_1=-18$

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$2= \frac{y_1+11}{2} \\\\\frac{y_1+11}{2}=2\\\\\frac{2\left(y_1+11\right)}{2}=2\cdot \:2\\\\y_1+11=4\\\\y_1=-7$

The other endpoint of the segment is $(x_1,y_1)=(-18,-7)$ .

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Step-by-step explanation:

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