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michellemonroe012305
03.09.2021 •
Mathematics
SOMEONE HELP ME WILL GIVE 30 POINT PLUS BRAINLIEST!!!
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Ответ:
1. 16
2. 4
3. x = 11
4. (-2, 5)
5. (-10, -5.5)
Step-by-step explanation:
1. Because Q is the midpoint, PQ + QS = PS, and PQ = QS
PQ = 8, so QS = 8
8+8 = 16 = PS
2. QS = 8, and R is the midpoint, so QR is half
8/2 = 4, QR = 4
3. PQ = QS (because Q is the midpoint of PS)
3x - 4 = 29
3x = 33
x = 11
4. midpoint formula: add the two x coordinates, then divide by 2 to get the x coordinate, add the two y coordinates and divide by 2 to get the y coordinate
x coordinate:![\frac{-9+5}{2} = -2](/tpl/images/2453/5819/3608e.png)
y coordinate:![\frac{3+7}{2} = 5](/tpl/images/2453/5819/959d0.png)
(-2, 5)
5. Use the midpoint formula again
x coordinate:![\frac{-12+-8}{2} =-10](/tpl/images/2453/5819/9466d.png)
y coordinate:![\frac{-7+-4}{2} =-5.5](/tpl/images/2453/5819/279a6.png)
(-10, -5.5)
Ответ: