Math Section Flashcards
Square root of 2
1.4
Square root of 1
1
Square root of 3
1.7
Square root of 4
2
X^2 can be…
Positive or negative
Square root of 144 can only be….
Positive 12, not negative… It is within the symbol thingy
When multiplying or dividing both sides of an INEQUALITY by a negative number…
The direction of the inequality symbol must change
x^2 + 2xy + y^2 is the same as
(x + y)^2
0.2 in fraction form
1/5
0.4 in fraction form
2/5
0.6 in fraction form
3/5
0.8 in fraction form
4/5
Percent increase or decrease is
Formula
Difference / original
Bell curve percentages for standard deviation questions?
2, 14, 34, 34, 14, 2
When you see a chart in math, pay attention to…
Info in titles; asterisks, footnotes, parentheses, and small print; units (per second, in millions, etc)
Area of a triangle
1/2 x base x height