Hello,
2x²+x-14=0
Δ=1+4*14*2=113
x=(-1-√113)/4=-2,8839...≈-2.88
or x=(-1+√113)/4=2,40753≈2.41
U= -1
-9u+6u=-36+39
-3u=3
u=-1
Answer:
1. 1/6
2. 1/9
3. 1/10
4.it would still be 9/10
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I cant answer that one sorry
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4 (im a little less confident in this one :( )
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1/4
If there is 8 boys then there is 12 girls because 2x4=8 boys so 3x4=12 girls.
Answer:
i think the answer is b if i am wrong please tell me please :(
Step-by-step explanation: