If anyone can help me solve these...
1 answer:
Plug -2 into the first expression and you get -8 as the answser
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Answer:
Protons and neutrons.
Step-by-step explanation: basic science
Answer:
slop=4
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(9+7)/(3+1)
m=16/4=4
$\frac{9-r^2}{r^2-2r-3}\cdot\frac{4-4r^2}{r^2+4r+3}=\frac {4\left(r-1\right)}{r+1}$9− r 2 r 2−2 r −3 ·4−4 r 2 r 2+4 r +3 =4( r −1) r +1. Steps.