| Terms |
Definitions |
|
3^2
|
9
|
|
23^2
|
529
|
|
pythagorean theorem
|
a²+b²=c²
|
|
divisive
(dih-vahy-siv)
|
discordant, disruptive
|
|
digit
|
the numbers 0-9
|
|
hubris
(hyoo-bris)
|
pertension, nerve
|
|
45-45-90 triangle
|
x, x, x√2
|
|
volume of a sphere
|
V=.75∏r³
|
|
positive
|
numbers greater than 0
|
|
triangle inequality theorem
|
z=third side...Ix-yI<z....x+y>z
|
|
Sum
|
The result of adding numbers
|
|
Area of a Circle
|
= πr2
|
|
odd
|
numbers not divisible by 2
|
|
Distance formula
|
root (x1-x2)^2 + (y1-y2)^2
|
|
relation
|
A set of ordered pairs (x,y)
|
|
subtracting exponents
|
x^a / x^b = x^(a-b)
|
|
Mean (Average)
|
mean = total/# of things
|
|
Rational Numbers
|
All positive and negative integers, fractions and decimal numbers.
|
|
prime factors
|
2, 3, 5, 7, 11, ...
|
|
Complementary
|
sum of angles that equals 90 degrees
|
|
factor
|
a number that evenly divides into another number
|
|
Circumference
|
The "length" of a circle, measured from one point and then all the way around back to that point. The perimeter of a circle.
|
|
logarithms
|
y = log(little b)x asks b^y = x
|
|
How many sections are on the SAT math?
|
3
|
|
how many math sections are on the test
|
three
|
|
Empirical verification
|
the scientific way of learning answers to questions, in which knowledge is developed, demonstrated, and double-checked through experiments
|
|
similar triangles
|
have the same angle measures and proportional side lengths
|
|
Irrational numbers
|
any numbers that does not end or repeat
|
|
Graphing ≥ or ≤ on a coordinate plane
|
solid line
|
|
prime numbers/prime factorization
|
prime number is a positive integer that has two factors, 1 and itself
for prime factorization, factor the number and then pick out the prime numbers
|
|
Inverse Variation
|
y varies inversely as x; as increases y decreases; as x decreases y increases; xy=k or y=k/x;
|
|
Sector
|
The part of a circle that looks like a piece of pie. A sector is bounded by 2 radii and an arc of the circle.
|
|
Characteristics of a Parallelogram
|
A parallelogram has two pairs of parallel sides, opposite sides are equal, opposite angles are equale, consecutive angles add up to 180 degrees
|
|
geometric sequence
|
a sequence in which each term is found by multiplying the previous term by the same number
|
|
distance between (x₁, y₁) and (x₂, y₂): _________________________
|
√(x₂-x₁)² + (y₂-y₁)² = √(Δx)² + (Δy)² *note: Δ means difference
|
|
How do they help you?
|
SAT MATH, Video with strategies, and Practice quizes
|
|
what are the sections in sat math
|
25 min sec., 20 min sec.
|
|
domain & range
|
the domain of a function is the set of values for which the function is defined. The range of a function is the set of outputs or results of the function.
|
|
quadratic function
|
y = a (x - h)2 + k, where the vertex of the parabola is at the point (h, k) and a ≠ 0. If a > 0, the parabola opens upward; and if a < 0, the parabola opens downward.
|
|
what type of questions does it hold
|
in both sections it holds 54 which 44 are multiple questions.
|
|
17^2
|
289
|
|
sin2x
|
2sinxcosx
|
|
cos (A+B)
|
cosAcosB-SinASinB
|
|
ratios
|
parts to parts
|
|
Probability
|
Probability=desired outcomes/total outcomes
|
|
superficial
(soo-per-fish-uhl)
|
inattentive, ignorant
|
|
rectangle area
|
area = lw
|
|
full circle
|
= 360 degrees
|
|
volume of a cone
|
1/3piR^2(H)
|
|
tenet
(ten-it)
|
assumption, impression, opinion
|
|
cylinder surface area
|
2(pie)r(squared) + 2(pie)(r)(H)
|
|
parallel slopes
|
slopes that are equal
|
|
sum of A S
|
n(a1 +an)/2
|
|
elixir
(ih-lik-ser)
|
principle, medicine, solution, mixture
|
|
cos of an angle
|
adj / hyp
|
|
difference of squares
|
a^2 -b^2 = (a+b)(a-b)
|
|
similar
|
same shape, corresponding angles are equal, corresponding sides are in proportion
|
|
different
|
not considering the order of things
|
|
addiong & subtracting polynomials
|
combine loke terms
|
|
range
|
the set of all possible "y" values
|
|
Multiplying Fractions
|
To multiply fractions, multiply the numerators and multiply the denominators
|
|
domain
|
the set of all possible "x" values
|
|
0
|
not positive or negative, is an integer, whole #, gigit, not a remainder, even #
|
|
quadrilateral
|
A flat shape with four straight sides.
|
|
equal
|
every point outside a circle has tan lines on the circle that are _________
|
|
prime number
|
an integer that has no integral factors but itself and 1
|
|
Plug-in
|
Asks you to find a fraction a %,
|
|
eminent
(em-uh-nuhnt)
|
well-known; high in station, rank or repute
|
|
Multiples
|
ex. multiples of 20 are 40, 60, 80, 100, ...
|
|
What website can you look at for more info?
|
KaplanCollegeGuide.com
|
|
Direct Proportion
|
a relationship in which the ratio of two variables is constant
|
|
median
|
The middle number in a set of numbers that are listed in order.
|
|
Central Angle
|
An angle whose vertex is the center of the circle
|
|
area of a tapezoid
|
(base one + base two)/2 x height
|
|
Multiplying powers
|
x^3 X x^4 = x^3+4 = x^7 (add the powers)
|
|
counting how many integers between f and L
|
(last term - first term) -1
|
|
Graphing ≤ or < on a coordinate plane
|
shade downwards or to the left
|
|
union & intersection of sets
|
is the set of elements that are in either or both.....set of elements common to both
|
|
What are some methods for the SAT math?
|
In the SAT you will choices from A-E. Your choice will be to guess C first because most of the answers are B or C.
|
