Basic Concepts Flashcards

1
Q

a is

A

a is negative
a=0
a is positive

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2
Q

|3|=

|-3|=

A

3

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3
Q

The only number that is equal to its opposite is

A

0

a-b=-(a-b)

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4
Q

Sum

A

Addition +
16 is the sum of 12 and 4
16=12+4

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5
Q

Difference

A

Subtraction -

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6
Q

Product

A

Multiplication

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7
Q

Quotient

A

Division

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8
Q

The product and quotient of two positive numbers or two negative numbers are

A

POSITIVE

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9
Q

The product and quotient of a positive number and a negative number are

A

NEGATIVE

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10
Q

The product of an EVEN number of negative factors is

A

POSITIVE

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11
Q

The product of an ODD number of a negative factor is

A

NEGATIVE

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12
Q

The sum of two positive numbers is

A

POSITIVE

6+2=8

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13
Q

The sum of two negative numbers is negative

A

NEGATIVE

(-6)+(-2)=-8

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14
Q

The sum of a positive and a negative number

A

Find the difference of their absolute values and use the sign of the number with the largest absolute value
6+(-2)=4

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15
Q

The sum of ant number and its opposite is 0

A

a+(-a)=0

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16
Q

Subtracting a number is the same ad adding its opposite

A

a-b=a+(-b)

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17
Q

Dividing by a number is the same ad multiplying by its reciprocal

A

a/b=ax(1/b)

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18
Q

Consecutive integers

A

Two or more integers written in a sequence in each integer is 1 more than the preceding integer
22,23,24

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19
Q

Integers

A

….-1,0,1….

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20
Q

Prime number

A

A number that can only be multiplied (divisible) by one and itself and is greater than 2,3,5,7,11,13,17,19,23,29
**DOES NOT INCLUDE 1

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21
Q

Triangle 12,13__

A

5

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22
Q

Special right triangle

3,4,___

A

5

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23
Q

Right triangle 30-60-

A

90

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24
Q

Right triangle

45-45__

25
Area of a circle
A= π × r2.
26
Composite number
Positive integer greater than 1 that are not prime
27
0^2
0
28
1^2
1
29
2^2
4
30
3^2
9
31
4^2
16
32
5^5
25
33
6^2
36
34
7^2
49
35
8^2
64
36
9^2
81
37
100^2
100
38
11^2
121
39
12^2
144
40
13^2
169
41
14^2
196
42
15^2
225
43
Area of a square
A=s^2
44
Median
The middle value of an ordered sequence of values
45
When 2 chords intersect inside a circle
The segment formed have lengths such that the product of the segment length is the same number for each chord
46
Perimeter of rectangle
P=2l+2w
47
Area of rectangle
A= l x w
48
Quadratic equation
In mathematics, a quadratic equation is a univariate polynomial equation of the second degree. A general quadratic equation can be written in the form ax^2 + bx + c = 0
49
For any positive numbers | a and b
(a + b)^2 > a^2 + b^2
50
Any number a,b,c:
a(b+c) = ab +ac
51
60 seconds = ______
1 minute
52
60 mins = _____
1 hr
53
24 hrs =_____
1 day
54
365 days = _____
1 year
55
100 years = ____
1 century
56
Ex. Isosceles triangle
70, 70, 40
57
How do you get rid of SQRT? | -\------
SQRT it | ( )^2
58
Area of triangle
A=bh/2 | Base X Height / 2