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Amanda [17]
4 years ago
9

4 times the sum of a number and 15 is at least 120.let x represent the number. find the possible values for x​

Mathematics
1 answer:
Serga [27]4 years ago
3 0

Answer:

Step-by-step explanation:

4(x+15)>_120

4x+60>_120

-60. -60

4x>_60

— —

4 4

X>_12

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\displaystyle\lim_{x\to\infty}\ln(3x+1)^{4/x}=\lim_{x\to\infty}\frac{4\ln(3x+1)}x\stackrel{\mathrm{LHR}}=\lim_{x\to\infty}\frac{4\frac3{3x+1}}1=\lim_{x\to\infty}\frac{12}{3x+1}=0

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