GRE
The perimeter of △ABO
The length of arc BCD
3x+4y
8
The area of the region enclosed by the pentagon shown
$$\frac{7}{2}S$$
x+y+z
$$\frac{1}{x+y+z}$$
$$\frac{1}{2}(x+y)$$
$$\frac{1}{2}$$x + y
The radius of $$C_1$$
Twice the radius of $$C_2$$
In the xy -plane, the slope of the line containing the points (a, b) and (0, 2)
In the xy -plane, the slope of the line containing the points (a, b) and (2, 0)
The standard deviation of the 3 numbers x, x+1, and x+70
The standard deviation of the 3 numbers x+ 10, x+11, and x+80
The area of triangular region A
The area of triangular region B
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