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vesna_86 [32]
3 years ago
9

Solve for b: b² = 8b + 84

Mathematics
1 answer:
levacccp [35]3 years ago
4 0
B² = 8b + 84
b² - 8b - 84 = 0
b = <u>-(-8) +/- √((8)² - 4(1)(-84))</u> 
                       2(1)<u>
</u>b = <u>8 +/- √(64 + 336)</u>
                   2
b = <u>8 +/- √(400)
</u>               2<u>
</u>b = <u>8 +/- 20
</u>            2
b = 4 <u>+</u> 10
b = 4 + 10          b = 4 - 10
b = 14                b = -6
<u />
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<span>13-((4/5)+(6/8))
Make your fractions have common denominators 
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Add your fractions and simplify
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6 0
3 years ago
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sattari [20]
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Maddie tried to divide 160 stickers equally amongst herself and 5 friends. There was some stickers left over, so she kept them.
Nutka1998 [239]

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3 0
3 years ago
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forsale [732]

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Step-by-step explanation:

3 0
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