$Domain:\\D:x > 0\\\\\ln x=5.6+\ln(7.5)\ \ \ \ |-\ln(7.5)\\\\\ln x-\ln7.5=5.6\ \ \ |Use\ \log x-\log y=\log\dfrac{x}{y}\\\\\ln\dfrac{x}{7.5}=5.6\ \ \ \ |use\ \log_ab=c\iff a^c=b\\\\\dfrac{x}{7.5}=e^{5.6}\ \ \ \ |\cdot7.5\\\\\boxed{x=7.5e^{5.6}}\in D$

$\log x=5.6-\log7.5\ \ \ \ |+\log7.5\\\\\log x+\log7.5=5.6\ \ \ \ |use\ \log x+\log y=\log (xy)\\\\\log(7.5x)=5.6\ \ \ \ |use\ \log_ab=c\iff a^c=b\\\\7.5x=10^{5.6}\ \ \ \ |:7.5\\\\\boxed{x=\dfrac{10^{5.6}}{7.5}}\in D$

5 0

2 years ago

HELP!!! Does anyone understand???????????

vesna_86 [32]

Answer:

4.0

observed time spent exerciseing: 4.5

predicted time:5.5

residual: 1

5.0

observed time spent exerciseing: 6.5

predicted time:5.0

residual: 1.5

7 0

2 years ago

What is the probability that five people selected at random have the same birthday month?

Arturiano [62]

Answer:

Step-by-step explanation:

Uuryrurururururururu

JK the answer is 49%

5 0

2 years ago