FORMULAS Flashcards
(29 cards)
1
Q
Sum of Roots
A
-b/a
2
Q
quadratic formula
A
-b+-root(b^2-4ac)/2a
3
Q
vertex form
A
f(x)=a(x-h)^2+k
4
Q
One real root/solution
A
b2-4ac
5
Q
Area of Circle
A
(pi)r^2
6
Q
A
7
Q
circumference of circle
A
2(pi)r
8
Q
area of triangle
A
(1/2)bh
9
Q
volume of cylinder
A
(pi)r^2h
10
Q
volume of sphere
A
(4/3)(pi)r^3
11
Q
volume of cone
A
(1/3)(pi)r^2h
12
Q
volume of pyramid
A
(1/3)lwh
13
Q
simple interest
A
A=principle amount(1+RxT)
14
Q
Compound Interest Anually
A
A=principle amount(1+rate)^time
15
Q
multiplication rule for exponents
A
a^b * a^c = a^b+c
16
Q
Division rule for exponents
A
a^b/a^c = a^b-c
17
Q
Power rule for exponents
A
(a^b)^c = a^b*c
18
Q
negative exponents rule
A
a^-b = 1/a^b
19
Q
slope formula
A
y2-y1/x2-x1
20
Q
slope-intercept form
A
y=mx+b
21
Q
point-slope form
A
y-y1 = m (x-x1)
22
Q
average
A
sum of items/number of items
23
Q
median
A
middle number
24
Q
range
A
max - min
25
formula for circle
(x-h)^2 + (y-k)^2 = r^2
(h,k) = center
r = radius
26
radians to angle
x/b * (pie) * (180)
27
sin
opposite/hypotenuse
28
cos
adjacent/hypotenuse
29
tan
opposite/adjacent
