Answer:
CD = two square root of 10 end square root
Step-by-step explanation:
To find the length of a segment, use the distance formula. Substitute the order pairs for the endpoints of the segment. CD has the end points (-7, -4) and (-1, -2).
Which function has the domain x>-11?
1 answer:
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<span>y=-3x²-30x-27
Δ=b²-4ac=(-30)²-4.(-3).(-27)=900-324=576 ∴ √Δ=24
x'=(-b
√Δ)/2a=(-(-30)24)/2.(-3)=-54/6=-9
x''=</span><span>(-b-√Δ)/2a=(-(-30)-24)/2.(-3)=-6/6=-1
Raízes são x''=-9 e x''=-1
</span>
Δ=b²-4ac=(-30)²-4.(-3).(-27)=900-324=576 ∴ √Δ=24
x'=(-b
x''=</span><span>(-b-√Δ)/2a=(-(-30)-24)/2.(-3)=-6/6=-1
Raízes são x''=-9 e x''=-1
</span>