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bija089 [108]
3 years ago
9

Would this be -4? Just wanna confirm!

Mathematics
2 answers:
Bess [88]3 years ago
5 0

Answer:

Yes

Step-by-step explanation:

dolphi86 [110]3 years ago
4 0

Answer:

True

Step-by-step explanation:

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For what value of r is the parallelogram a rhombus
Gre4nikov [31]

Answer:

9

Step-by-step explanation:

7r+18=r²

r²-7r-18=0

factorizing

r²+2r-9r-18=0

r(r+2)-9(r+2=0

(r-9)(r+2)=0

r-9=0

r=9

check

(r²)=(9*9)=81

7r+18=7(9) + 8=81

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