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Is supercalifrejelistickexpealidocus a true word?
Yes, it is. It spells S-U-P-E-R-C-A-L-I-F-R-A-G-A-L-I-S-T-I-C-E-X-P-I-A-L-I-D-O-C-I-O-U-S. It means fantastic or wonderful.
L is not as tall as P or R but is taller than S and Q Q being shorter than R S is shorter than R who is shorter than P who is taller than Q Who among P Q R and S is the shortest?
The answer is Q.
How do you do linear equations with two points?
Suppose you have the points with coordinates (p, q) and (r, s) then, provided p is different from r, the slope of the line is (q - s)/(p - r) = m, say. Then, if (x, y) is any point on the line, (x - s)/(y - r) = m That, after simplification, is the linear equation of the line. This will be a lot simpler when you have numerical values for p, q, r and s rather than work algebraically throughout. If p is not different from r, then the equation is x = p (or r), a vertical line.
Can a 3 X 4 matrix be multiplied by a 4 X 1 matrix?
Yes. If one matrix is p*q and another is r*s then they can be multiplied if and only if q = r and, in that case, the result is a p*s matrix.
An equation that shows two ratios are equivalent?
Two ratios, p/q and r/s (q and s non-zero) are equal if p/q - r/s = 0.
