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Afoqt 2020 > Math Knowledge > Flashcards

Math Knowledge Flashcards

1
Q

Part =

A

Whole x percent

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2
Q

Cuboid volume

A

Lwh

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3
Q

Pyramid surface

A

B + 1/3 pl

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4
Q

Interior angle of a polygon formula

A

(N-2)/2 x 180

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5
Q

Original amount =

A

Amount of change / percent change

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6
Q

Operation if elements can be regrouped without changing the result

A

Associative

-3 + (5-3)

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7
Q

1 gallon equals how many liters

A

3.785

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8
Q

Area of a triangle

A

1/2 bh

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9
Q

1 miles equals how many kilometers

A

1.61

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10
Q

Standard form equation

A

Ax + By = C

In order to graph equation change to slope intercept

To find x intercept make y=0
To find y intercept make x= 0

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11
Q

Cone surface

A

PiR^2 + piRL

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12
Q

Slope formula

A

M = (y2-y1)/(x2-x1)

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13
Q

Complex numbers are closed under

A

All operations

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14
Q

How do you find the interior angle of a polygon?

A

(N-2)180*/n

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15
Q

Pyramid volume

A

1/3 bh

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16
Q

Polygon sum of angles

A

= (n-2) 180*

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17
Q

Ao =

A

1

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18
Q

18% as a fraction

A

18/100 = 9/50

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19
Q

Axis of symmetry

A

Vertical line that cuts parabola in half

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20
Q

Surface are of cube

A

6s^2

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21
Q

Volume of a cylinder

A

Bh or piR^2h

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22
Q

The sum of two irrational numbers is irrational true or false

A

False

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23
Q

Irrational numbers are closed under

A

No operations

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24
Q

Order does not matter when performing an operation is what property

A

Commutative

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25
Q

Area of triangle

A

1/2 bh

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26
Q

Convert 7 ya squared to feet squared

A

7 yd square (3ft/1yd) (3ft/1yd) = 63 ft squared

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27
Q

A map is drawn such that 2.5 inches equals 40 miles. If the distance measured on the map between two cities is 17.25 inches what is the actual distance between the cities

A
  1. 5/40 = 17.25/x
  2. 5x = 690

X= 276

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28
Q

Area of a circle

A

Pi r^2

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29
Q

Circumference of a circle

A

2 pie R

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30
Q

Am / An =

A

A m-n

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31
Q

A proportion is an equation which states the two ratios are equal.

A/b = c/d
=
Ad = bc

A

Smile

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32
Q

The sum of a rational and irrational number is irrational true or false

A

True because a rational numbers have decimal parts that are unending and with no pattern adding a repeating or terminating decimal will still result in an unending decimal without a pattern

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33
Q

The distance formula for a line that terminated between two points

A

D= sqr root of (x2-x1)^2 + (y2-y1)^2

Resembles the Pythagorean theorem

34
Q

Surface are of a sphere

35
Q

Volume of a cube

36
Q

A factory knows that four out of 1000 parts made will be defective. If in a month there are 125,000 parts made how many will be defective

A

4/1000 = x/125,000

1000x = 500,000

X= 500

37
Q

Amount of change =

A

Original amount times percentage change

38
Q

Whole =

A

Part / percent

39
Q

1 yard equals how many meters

40
Q

Volume of rectangle

41
Q

The commutative property applies to all real numbers and all operations true or false

A

False It does not work for subtraction or division on real numbers

42
Q

Real numbers are closed under which operations

43
Q

Prism volume

44
Q

Percent =

A

Part / whole

45
Q

A-n =

46
Q

1°F equals

A

9/5C + 32 degrees C

47
Q

Interior angles of quadrilateral equal

A

360 degrees

48
Q

Midpoint formula

A

M = (x1+x2/2 , y1+y2/2)

49
Q

Standard form

A

Y= ax^2 +bx + c

50
Q

Rational numbers are closed except

51
Q

Lateral area of a cone

52
Q

Area of polygon =

53
Q

4.25 kilometers converted to meters

A

4.25 x (1000m/1km) = 4250 m

54
Q

1 cal equals how many joules

55
Q

Volume of a sphere

56
Q

Apothem

A

Shortest perpendicular distance from polygons center to a side. Needed to find area.

57
Q

Am x An =

58
Q

The associative property applies for multiplication in the real numbers true or false

A

True order of multiplication does not change the result

59
Q

Vertex formula

A

(-(b/2a) , f(-b/2a))

60
Q

A TV that originally cost $1500 is on sale for 45% off. What is the sale price for the item

A

Original amount equals $1500
Percent change equals .45

1500 x .45 = 675

1500 - 675 = $825

61
Q

Write .125 as a fraction

A

.125/1 x 10/10 x 10/10 x 10/10 = 125/1000 = 1/8

62
Q

1 inch equals how many centimeters

63
Q 
Tera
Giga 1,000,000,000
Mega 1,000,000
Kilo 1000
Hecto 100
Deca 10
A

Deci .1
Centi .01
Milli.001

64
Q

Number that can be represented by a point on a line. Includes rational and irrational numbers

A

Real number

65
Q

3/5 as percent

66
Q

Area of a parallelogram

67
Q

1 ounce equals how many grams

68
Q

Slope intercept form

69
Q

Vertex form

A

Y=a(x-h)^2+k

Vertex (h,k)

Axis of symmetry = h

70
Q

Includes positive and negative natural numbers

71
Q

Area of quadrilateral equals

72
Q

1 pound equals how many kilograms

73
Q

1.125 as percent

74
Q

Prism SA

A

2lw + 2wh +2lh

75
Q

8m squared to mm squared

A

8m squared x (1000mm/ 1m) (1000mm/1m) = 8,000,000 mm squared

76
Q

Surface of a cylinder

A

Two pi R squared +2 pi RH

77
Q

Greater than zero and has no decimal or fraction

A

Natural number

78
Q

Cone volume

79
Q

Axis of symmetry

A

X = -(b/2a)

80
Q

Area of a rhombus or kite

A

1/2 ab

A and B perpendicular lines crating triangles

81
Q

Percent change

A

Amount of change / original amount

82
Q

Natural numbers are closed under subtraction?

Afoqt 2020 (6 decks)

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