Rules and Axiomatics Flashcards

1
Q

Distributive law

A

A(b+c)=ab+ac

A(b-c)=ab-ac

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2
Q

Square root of 1

A

1

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3
Q

Square root of 2

A

1.4

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4
Q

Square root of 3

A

1.7

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5
Q

Square root of 4

A

2

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6
Q

Expressions of Quadratic Equations

  1. X^2 - Y^2

Unfactored form?

A

Expressions of Quadratic Equations

  1. (X+y)(x-y)

factored form?

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7
Q

Expressions of Quadratic Equations

  1. (X+y)^2

Unfactored form?

A

Expressions of Quadratic Equations

  1. X^2 + 2xy + y^2

factored form?

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8
Q

Expressions of Quadratic Equations

  1. (X-y)^2

Unfactored form?

A

Expressions of Quadratic Equations

  1. X^2 - 2xy + y^2

factored form?

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9
Q

plugging in values

ZONE F

A

Zero
One
Negatives
Extreme values

Fractions

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10
Q

Percentage increase/decrease formula

A

Percent change = difference / original x 100

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11
Q

Standard deviation percentages for normal distribution

A

2%, 14%, 34%

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12
Q

Triangle third side rule

A

The length of any one side of a Triangle must be less than the sum of the other two sides and greater than the difference between the other two sides

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13
Q

Area of triangle

A

1/2 (base x height)

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14
Q

To solve a permeation (arrangement of things in particular order)

A
  1. Number of slots
  2. Number of options for each slot
  3. Multiply
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15
Q

To solve a combination (a group without matter to order of elements)

A
  1. Number of slots
  2. Number of options for each slot
  3. Divide by factorial of number of slots
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16
Q

Group equation

A

Total = G1+G2-B+N

17
Q

most common right triangles

A

3, 4, 5
6, 8, 10
5, 12, 13

18
Q

length of diagonal of square

A

(side of square) x (square root of 2)

19
Q

height of equilateral triangle

A

(1/2 length) x (square root of 3)

20
Q

circumference of circle

A

2(radius)(pi) or (diameter)(pi)

21
Q

area of circle

A

(pi)(radius squared)

22
Q

equation of a line (slope)

A

y = mx + b

m = slope, b = y-intercept

23
Q

calculate slope

A

rise / run or (y2-y1)/(x2-x1)

24
Q

Any number divided by 0 is

25
When an inequality is divided by a negative number, the direction of the inequality __________
Reverses
26
Sum of two even integers
Even
27
Sum of two odd integers
Even integer
28
Sum of even integer and odd integer
Odd integers
29
Product of two even integers
Even
30
Product of two odd integers
Odd integer
31
Product of even integer and odd integers
Even integer
32
Square root of A x Square root of B
Square root of A x B
33
Square root of A / Square roof of B
Square root of A / B
34
(A-b)^3
(A^3)-3((a^2)b)+(3ab^2)-(b^3)
35
(A^2)-(b^2)
(A+b)(a-b)
36
Quadratic formula
(-b+-(square root of b^2 -4ac)) / 2a
37
Simple interest
P(1+rt/100) P=principal R=rate in decimal T=time in years
38
Compound interest
V=p(1+r)^t P=principal R=rate T=time in years
39
Compound interest at annual rate of R percent
V=p(1+r/100n)^nt N=compounded n times per year