What is a real number? - ANS any number without 'i'
what is a constant? - ANS specific fixed number
What is an integer? - ANS a whole number
What does quotient mean? - ANS to divide
Complementary angles - ANS add to 90 degrees
supplementary ang...
What is a real number? - ANS any number without 'i'
what is a constant? - ANS specific fixed number
What is an integer? - ANS a whole number
What does quotient mean? - ANS to divide
Complementary angles - ANS add to 90 degrees
supplementary angles - ANS add to 180 degrees
On a 30,60,90 triangle, what are the sides starting smallest? - ANS x, xroot3, and 2x
On a 45,45,90 triangle, what are the side ratios? - ANS x, x, and xroot2
How do you add vectors together? - ANS <x,y>+<a,b>=<x+a,y+b>
domain - ANS x values
range - ANS y values
how do you add matrices? - ANS Simply add the corresponding places (if they are different
sizes then it is undefined)
how do you multiply matrices by a constant? - ANS just multiply every number by the
constant and leave it in the same shape
how do you multiply matrices by another matrix? - ANS there should be the same number
of rows as the first matrix and the same number of columns as the second, and do almost a
foiling method
How do you simplify a matrix? - ANS IabI
I c d I = ad-bc
How do you remember absolute value inequalities? - ANS greatOR, less thAND
, What should you always be on the lookout for regarding squares and square roots? - ANS
two answers
slope of a horizontal line - ANS zero
slope of a vertical line - ANS undefined
what is the discriminant? - ANS b^2-4ac
What does a discriminant tell you? - ANS if 0=1 solution
if + = 2 real solutions
if - = 2 complex solutions/no real solutions
What slopes do perpendicular lines have? - ANS negative reciprocal
What is a scalene triangle? - ANS all different lengths/angles
equation of a circle - ANS (x-h)²+(y-k)²=r²
volume of a sphere - ANS 4/3πr³
volume of a cylinder - ANS πr²h
volume of a cone - ANS 1/3πr²h
A triangle formed by three points on a circle with the hypotenuse being the diameter will always
be a... - ANS right triangle
area of a circle - ANS πr²
Circumference of a circle - ANS 2πr
what are parallelograms - ANS two sets of parallel lines with no right angles
what is a rhombus - ANS a parallelogram with 4 congruent sides
area of a trapezoid - ANS 1/2(b1+b2)h
how do you find the interior angles of a polygon - ANS n=number of sides
(n-2)180
what is the distance formula - ANS d = √(x2 - x1)^2 + (y2 - y1)^2
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