must know equations for sat?
320448
['Slope-Intercept Form of a Line. y=mx+b. ... ', 'Vertex Form of a Parabola/Quadratic. y=a(x-h)^2+k. ... ', 'Distance Formula. d=\\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} ... ', 'Quadratic Formula. ... ', 'Exponent Rule (Multiplication) ... ', 'Exponent Rule (Division) ... ', 'Exponent Rule (Power Raised to a Power) ... ', 'Binomial Product 1—Difference of Squares.']
417280
['Factoring.', 'Completing the Square.', 'Quadratic Formula.', 'Graphing.']
627999
['Obtain a, b and c from the equation. In this case a=2, b=−8 and c=−24.', 'Open the quadratic equation solve mode: MODE 5 3.', 'Enter the values of a, b and c. Use → or = to move between the cells.', 'Press = to solve the equation.']
668534
Step 1: Getting Started You should know that a quadratic equation looks something like this: x^2-3x+2=0 or ax^2+bx+c=0. This will be important later on. The first step is to press the program button on your calculator. Press the right arrow twice to get to new and select create new.
748983
['the formula is.', 's = ut + 0.5 at^2.', 'where s is the distance, u is the initial velocity (speed is the magnitude of velocity), a is the acceleration and t is the time.', 'Put all the values in the above formula and you will get an equation for t. ... ', 'You can also solve these two equations:']
931459
['168 = 2 × 2 × 2 × 3 × 7.', '196 = 2 × 2 × 7 × 7.']
1017548
['A and B together is impossible: P(A and B) = 0.', 'A or B is the sum of A and B: P(A or B) = P(A) + P(B)']
458274
Quadratic Equation in Standard Form: ax2 + bx + c = 0. Quadratic Equations can be factored. Quadratic Formula: x = −b ± √(b2 − 4ac) 2a. When the Discriminant (b2−4ac) is: positive, there are 2 real solutions.
299738
['α + β = - ba and αβ = ca.', '⇒ x2 + bax + ca = 0 (Since, a ≠ 0)', '⇒ x2 - (α + β)x + αβ = 0, [Since, α + β = -ba and αβ = ca]']
168263
How Long Does the SAT Take? The SAT clocks in at 3 hours (3 hours and 15 minutes with breaks). And if you choose to sign up for the optional essay, the SAT takes 3 hours and 50 minutes to complete (or 4 hours, 5 minutes with breaks).
199103
['Step 1: Getting Started. You should know that a quadratic equation looks something like this: x^2-3x+2=0 or ax^2+bx+c=0. ... ', 'Step 2: The Equation. Look at the first picture and put that on your calculator. ... ', 'Step 3: Displaying Results. Press program, then the right arrow, then 3. ... ', 'Step 4: Using the Program.']
870082
['What we need to do is simply set each factor equal to zero, and solve each equation for x.', 'The answers are x = − 7 x = - \\,7 x=−7 and x = 2 x = 2 x=2. ... ', 'The left side of the equation is a binomial. ... ', 'Note, I can also factor out 2 x 2x 2x instead of −2x.']
328339
['Make both equations into "y =" format.', 'Set them equal to each other.', 'Simplify into "= 0" format (like a standard Quadratic Equation)', 'Solve the Quadratic Equation!', 'Use the linear equation to calculate matching "y" values, so we get (x,y) points as answers.']
626006
['When the signs of the two numbers are the same, the answer will be positive.', 'When the signs of the two numbers are different, the answer will be negative.']
1315032
['Solution.', 'Step 1: Add or subtract the constant term to obtain an equation of the form x2+bx=c. ... ', 'Step 2: Use (b2)2 to determint the value that completes the square. ... ', 'Step 3: Add (b2)2 to both sides of the equation and complete the square.', 'Step 4: Solve by extracting roots.', 'Answer:']
712684
['∙y=mx+b.', 'y=2x+7 is in this form.', 'with slope =2 and y-intercept =7.']
393390
['Pr(X ≤ 1) = 1/6.', 'Pr(X ≤ 2) = 2/6.', 'Pr(X ≤ 3) = 3/6.', 'Pr(X ≤ 4) = 4/6.', 'Pr(X ≤ 5) = 5/6.', 'Pr(X ≤ 6) = 6/6 = 1.']