Thursday
December 12, 2013

# Posts by Knights

Total # Posts: 336

maths
prove what? that the whole thing equals 0 or something??

chemistry
2.4 x 10^-5 mol^2L^-2 at 25C

govenment
Henry's hostility to the government under the Constitution was so strong that he subsequently refused to join it, turning down offers to serve as United States Secretary of State and as a justice of the United States Supreme Court. -Wikipedia So, probably "c", Henry

algebra
What is the question, anna? Do we need to factor it?

Trigonometry question?
Thanks a lot, sorry I am not too good at trigonometry

Trigonometry question?
Let ABCD be a square, and let M and N be the midpoints of BC and CD respectively. Find sin<MAN.

Centroids and Triangles - determining perimeter?
Let G denote the centroid of triangle ABC. If triangle ABG is equilateral with side length 2, then determine the perimeter of triangle ABC. I drew the diagram, but it doesn't really help....

math
complete square: (x+2)^2+(y-1)^2 = 20 Then minus 2^2+1^2 = 5, so add 5 to the 20 we get (x+2)^2+(y-1)^2 = 25 sqrt 25 = 5 so, 5 is the radius the center is at (x+2)^2 = 0 (y-1)^2 = 0 so x = -2 y = 1 so the center is at (-2,1)

Bisectors in a Triangle
Let ABC have side lengths AB=13, AC=14, and BC=15. There are two circles located inside <BAC which are tangent to rays AB, AC , and segment BC. Compute the distance between the centers of these two circles.

Circles / Square
Alicia has a flat platter shaped like a square with a semicircle of diameter 10 inches on each edge. What is the number of inches in the side length of the smallest square that can contain the platter (which contains the square with the semicircles on each side of it)?

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