3 years ago

Lilly made a 89 on her Math test. The test had 26 questions, how many questions did she miss?

1 answer:

6 0

She missed 3 questions,

11/100 equals x/26
^set up this proportion
you get 286 equals 100x
and x equals 2.86

round this to 3 questions

to check your work, do 23/26

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3 years ago

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Step-by-step explanation:

We are given the inetegral: $\int\limits^{\infty}_2 \frac{1}{x} (\ln x)^2 dx$

$\int\limits^{\infty}_2 \frac{1}{x} (\ln x)^2 dx=\int\limits^{\infty}_2 (\ln x)^2 d(\ln x)=\\\\=\lim_{t \to \infty} \int\limits^t_2 (\ln x)^2d(\ln x)=\lim_{t \to \infty} \frac{(\ln t)^3}{3} |^t_2=\infty-\frac{(\ln 2)^3}{3} =\infty$