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What cultural factors might contribute to the rate of anxiety disorders found in a culture? How might the experience of anxiety differ among people of different culture?

I have a function √(x2(x+40)) to be integrated from 0 upto -4. Using Simpson's will give me 19.02 but using normal numerical methods giving me -19.5 !! What's the reason behind this difference...

What is the arithmetic mean of a set one numbers with 1 variable? (i.e. - 10, 10, 10, 10, 8, 8, 8, 8, 12, 12, 11, y) ?   The question asks for us to find the arithmetic mean (average)...

From a point inside an equilateral triangle, three perpendiculars are drawn on its three sides measuring 6cm, 8cm and 12 cm. What is the length of an arm of the equilateral triangle?

A coin is tossed 14 times .heads occur 18 times and tail 6 times . the second and thirteenth tosses are heads then find maximum no of heads that can occur in a row?

In the diagram below, points A, E, and F lie on the same line. If ABCDE is a regular pentagon, and angle EFD=90 degrees, then how many degrees are in the measure of angle FDE? http://latex.artofproblemsolving...

in an examination there are 3 multiple choice question has 4 choices.no of sequences in which a student can fail to get all answers correct is   (a)123 (b)80 (c)56 (d)50...