Wednesday
May 22, 2013

# Posts by Grace

Total # Posts: 315

Precalc
Thank you so so so much! I've been stuck on this for hours!

Precalc
The figure shows a 10 x 10 square centered at the origin. The darker-shaded square is the image of this square, dilated by a factor of 0.8 and rotated about the origin by exactly the number of degrees, , so that its corners touch the sides of the parent square. The corners of ...

11/15 feet long per piece. Or 8.8 inches.

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For this matrice, [[0.9cos(-30), 0.9cos(60), 2] [0.9sin(30), 0.9sin(60), 4] [0, 0, 1]] What is the rotation (in degrees) and is it clockwise or counterclockwise? I think it's 30 degrees clockwise...Is that right?

Precalc
I think it's [[2,4,6,4] [4,5,4,1] [1,1,1,1]] Is that correct?

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Write a 3 x 4 pre-image matrix for a kite with the points (2,4) (4,5) (6,4) and (4,1)

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I have: A. vector n= 3*vector i + 2*vector j + 5* vector k B. vector v= 7*vector i + 10*vector j + vector k C. 52.46 degrees And I'm not quite sure for D...

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Given the plane 3x+2y+5z=54 and the points P0(6, 8, 4)[on plane] and P1(13, 18, 5) [not on plane] A. Find vector n, a vector normal to the plane B. Find vector v from P0 to P1 C. Find the angle between vector n and vector v D. Find p, the scalar projection of vector v on vecto...

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Is it just ((6/11), (9/11), (2/11)) ?

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Is it just ((6/11), (9/11), (2/11)) ?

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