SAT Equations and Notes
1. To find average list of consecutive numbers (first+last)/2
2. How to find the --th term in a sequence: first number + (value --th term -1) X the sequence
3. How to find the remainder? Divide A/B. Subtract the integral part to just get a decimal. Multiply by b
4. Add two sides of a triangle, the third side is smaller. Subtract two sides, the third side must be larger
5. Formula to find the area - multiply the diameters divided by 2
6. Area of a equilateral triangle is sqrt(3)/4 * r^2
7. Arc length = circumference * x (degrees of arc) /360 (Same with area)
8. When order does not matter, how many combinations are there? x!/y!(x-y)! (x total) (y what needed)
9. (5/3)^-1 this flips it to be (3/5)
10. Finding average speed if distance is different: Find ratios of the time and do Distance = rate X time
11.
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