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valentinak56 [21]
3 years ago
8

Please simplify each expression for 18, 20, and 21

Mathematics
1 answer:
NeX [460]3 years ago
5 0
The answer to the questions

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3 years ago
I need help!!
netineya [11]

Answer:

2x +21

Step-by-step explanation:

log_{5} {5}^{(2x - 9)}   +  log_{3} {729}^{5}   \\  \\  =  log_{5} {5}^{(2x - 9)}   +  log_{3} {( {3}^{6} )}^{5}   \\  \\  =  log_{5} {5}^{(2x - 9)}   +  log_{3} { {3}}^{6 \times 5}   \\  \\  =  log_{5} {5}^{(2x - 9)}   +  log_{3} { {3}}^{30}    \\  \\ =(2x - 9)  log_{5} {5} + 30 log_{3} { {3}}   \\  \\  = (2x - 9).1 + 30(1 )\\ ( \because \: log_{a} { {a}}    = 1) \\  \\  = 2x - 9 + 30 \\  \\  = 2x +21

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3 years ago
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Answer:

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Step-by-step explanation:

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5 0
3 years ago
P + 12 = 30<br> Solve the equation .
yuradex [85]

Answer:

p=18

Step-by-step explanation:

p+12=30

subtract 12 from each side

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