For what type of triangle are the angle-bisectors, perpendicular-bisectors of sides, altitudes, and medians the same?
What will be an ideal response?
an equilateral (or equiangular) triangle
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The abacus in the figure has "five" playing the role of "ten." (a) What number is represented on this five-bead abacus? (b) How would this number naturally be recorded?
A. (a) 10, (b) 20 B. (a) 15, (b) 30 C. (a) 6, (b) 11 D. (a) 30, (b) 110
Multiply.(-4x + 12)(x - 11)
A. -4x2 + 56x + 56 B. -4x2 + 56x - 132 C. -4x2 + 54x - 132 D. -4x2 - 132x + 56
Graph the linear inequality.x ? 3
A. 
B. 
C. 
D. 
The following table shows the approximate value V of one Euro in U.S, dollars from its introduction in January 2003 to January 2006. (t = 3 represents January, 2003.) ? t (Year) 3 4 6 V (Value in $) 1.00 1.25 1.21 ? Which model would best fit the given data? (A, a, b, c, k, l, and m are constants.) ?
A. Exponential: 
B. Linear: 
C. Cubic: 
D. Quadratic: 
E. Logarithmic: 