GRE: Math2
GRE Math2 Flashcards  Most Studied  #7,9,10,12 I deleted ones that didn't make sense
Kalvin
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If y is directly proportional to x, what does it equal?y/x is a constant

What is a percent?A percent is a fraction whose denominator is 100.

#1 What is an important property of a 306090 triangle?• The triangle is a right triangle.

#2 What is an important property of a 306090 triangle?• The hypotenuse is twice the length of the shorter leg.

#3 What is an important property of a 306090 triangle?The ratio of the length of the three sides is x:x√3:2x

The negative exponent x⁻ⁿ is equivalent to what?1/xⁿ i.e. 5^3 = 1/(5^3) = 1/ 125 = .008

formula for area of a triangleA=½bh

formula for volume of a rectangular solidV=l×w×h

formula for the volume of a cubeV=side³

#1 What are the important properties of a 454590 triangle?• The triangle is a right triangle.

#2 What are the important properties of a 454590 triangle?• The triangle is isosceles (AC=BC).

#3 What are the important properties of a 454590 triangle?• The ratio of the lengths of the three sides is x:x:x√2.

formula for distance problemsdistance=rate×time or d=rt

A quadrilateral where two diagonals bisect each otherParallelogram

In a rectangle, all angles areRight

In a Rectangle, each angles measures90°

The Perimeter of a rectangleP=2(l+w)

Area of a Parallelogram:A=(base)(height)

(xy)(x+y)x²y²

(xy)²x²2xy+y²

(x+y)² x²+2xy+y²x²+2xy+y²
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