Hey there! Does anyone have a solid math cheat sheet for SAT prep? I'm trying to find an easy-to-follow resource that covers important formulas and concepts so I can practice and review efficiently. Thanks in advance!
Hey! A cheat sheet for SAT math can definitely help with your preparation. While I can't provide a physical document for you, I can list some key formulas and concepts you should be familiar with:
1. Quadratic Formula: For a quadratic equation in the form ax^2 + bx + c = 0, the solutions are given by x = (-b ± √(b^2 - 4ac)) / 2a
2. Pythagorean Theorem: For a right triangle with legs a and b, and hypotenuse c, a^2 + b^2 = c^2
3. Distance Formula: The distance between points (x1, y1) and (x2, y2) is √((x2 - x1)^2 + (y2 - y1)^2)
4. Midpoint Formula: The midpoint between points (x1, y1) and (x2, y2) is ((x1 + x2)/2, (y1 + y2)/2)
5. Slope-Intercept Form: A linear equation can be written as y = mx + b, where m is the slope and b is the y-intercept
6. Slope Formula: The slope between points (x1, y1) and (x2, y2) is (y2 - y1) / (x2 - x1)
7. Arithmetic Sequences: Tn = T1 + (n-1)d, where Tn is the nth term, T1 is the first term, and d is the common difference
8. Geometric Sequences: Tn = T1 r^(n-1), where Tn is the nth term, T1 is the first term, and r is the common ratio
9. Sum of Angles in a Polygon: The total interior angle sum in a polygon with n sides is (n - 2) x 180°
10. Circle Circumference: C = 2πr (r = radius)
11. Circle Area: A = πr^2
12. Rectangle Area: A = lw (l = length, w = width)
13. Triangle Area: A = 0.5bh (b = base, h = height)
In addition to these formulas, familiarize yourself with important concepts like the properties of exponents, mean/median/mode, and interpreting scatterplots.
For practice and targeted review, I recommend checking out resources like the College Board's official practice tests and Khan Academy's SAT prep program, which offers math lessons and practice problems targeted to different skill levels. Good luck with your SAT preparation!
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