Questions by RuudVanNistelrooy

Questions by RuudVanNistelrooy

An internal study by the Technology Services department at Lahey Electronics revealed company employees receive an average of "2.7" non-work-related e-mails per hour. Assume the arrival of these e-mails

asked Sep 7, 2020

1 answer

5 votes

13.6k views

There are four positive integers $a$, $b$, $c$, and $d$ such that \[ 4\cos(x)\cos(2x)\cos(4x) = \cos(ax) + \cos(bx) + \cos(cx) + \cos(dx) \]for all values of $x$. Answer with $a, b, c, d$ in any order,

asked Mar 10, 2020

2 answers

2 votes

57.9k views

2 1/2r + 1 + 2r = 9 1/10

asked Oct 6, 2019

1 answer

4 votes

49.9k views

A study to compare the mean level of LDL cholesterol in male and female students who do not exercise regularly gave the data shown in the table. We may assume that the populations of LDL level are normally

asked Jul 8, 2019

1 answer

3 votes

41.8k views

Which of the following adverbs is most appropriate in spoken (as opposed to written or formal) French? a. enfin b. ensuite c. premièrement d. finalement

asked May 26, 2019

1 answer

5 votes

68.1k views

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