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ohaa [14]
3 years ago
5

Which problem can be solved by this number sentence? 3 × 7 = 21

Mathematics
1 answer:
vlada-n [284]3 years ago
5 0
11+10=?????????????????????
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3 years ago
3. Solve 2log4y - log4 (5y - 12) = 1/2<br>​
Ilia_Sergeevich [38]

Answer:

y =  4  or y = 6

Step-by-step explanation:

2log4y - log4 (5y - 12) = 1/2

​2log_4(y) - log_4(5y-12) = log_4(2)           apply law of logarithms

log_4(y^2) + log_4(1/(5y-12)) = log_4(/2)    apply law of logarithms

log_4(y^2/(5y-12)) = log_4(2)                     remove logarithm

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y^2 = 10y-24                                                  rearrange and factor

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3 years ago
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