SAT Math: Questions With All Correct
Answers
quadratic formula Correct answer-[-b ± √(b² - 4ac)] / (2a)
slope formula Correct answer-(y₂- y₁) / (x₂- x₁)
integers Correct answer-..., -3, -2, -1, 0, 1, 2, 3, ...
rationals Correct answer-fractions (anything expessable as a ratio of integers)
reals Correct answer-integers, rationals, plus special #s (like √2 or pi)
order of opperations Correct answer-PEMDAS (Parentheses / Exponents / Multiply / Divide / Add /
Subtract)
Arithmetic Sequences Correct answer-t₁, t₁+ d, t₁+2d, ...
Geometric Sequences Correct answer-t₁, t₁· r, t₁· r², ...
Factors Correct answer-ex. factors of 52 are 2, 4, 13, and 26
Multiples Correct answer-ex. multiples of 20 are 40, 60, 80, 100, ...
percentages Correct answer-part = (percent / 100) x whole
average Correct answer-average = sum of terms / number of terms
average speed Correct answer-average speed = total distance / total time
sum Correct answer-sum = average x (number of terms)
mode Correct answer-mode = value in the list that appears most often
median Correct answer-median = middle value in the list
fundamental counting principle Correct answer-if an event can happen in N ways, and another,
independent event can happen in M ways, then both events together can happen in N x M ways.
probability Correct answer-probability = number of desired outcomes / number of total outcomes
Answers
quadratic formula Correct answer-[-b ± √(b² - 4ac)] / (2a)
slope formula Correct answer-(y₂- y₁) / (x₂- x₁)
integers Correct answer-..., -3, -2, -1, 0, 1, 2, 3, ...
rationals Correct answer-fractions (anything expessable as a ratio of integers)
reals Correct answer-integers, rationals, plus special #s (like √2 or pi)
order of opperations Correct answer-PEMDAS (Parentheses / Exponents / Multiply / Divide / Add /
Subtract)
Arithmetic Sequences Correct answer-t₁, t₁+ d, t₁+2d, ...
Geometric Sequences Correct answer-t₁, t₁· r, t₁· r², ...
Factors Correct answer-ex. factors of 52 are 2, 4, 13, and 26
Multiples Correct answer-ex. multiples of 20 are 40, 60, 80, 100, ...
percentages Correct answer-part = (percent / 100) x whole
average Correct answer-average = sum of terms / number of terms
average speed Correct answer-average speed = total distance / total time
sum Correct answer-sum = average x (number of terms)
mode Correct answer-mode = value in the list that appears most often
median Correct answer-median = middle value in the list
fundamental counting principle Correct answer-if an event can happen in N ways, and another,
independent event can happen in M ways, then both events together can happen in N x M ways.
probability Correct answer-probability = number of desired outcomes / number of total outcomes
