Math Knowledge Flashcards by Kevin saftner

Part =

Whole x percent

How well did you know this?

Not at all

Perfectly

Cuboid volume

Lwh

How well did you know this?

Not at all

Perfectly

Pyramid surface

B + 1/3 pl

How well did you know this?

Not at all

Perfectly

Interior angle of a polygon formula

(N-2)/2 x 180

How well did you know this?

Not at all

Perfectly

Original amount =

Amount of change / percent change

How well did you know this?

Not at all

Perfectly

Operation if elements can be regrouped without changing the result

Associative

-3 + (5-3)

How well did you know this?

Not at all

Perfectly

1 gallon equals how many liters

3.785

How well did you know this?

Not at all

Perfectly

Area of a triangle

1/2 bh

How well did you know this?

Not at all

Perfectly

1 miles equals how many kilometers

1.61

How well did you know this?

Not at all

Perfectly

Standard form equation

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

How well did you know this?

Not at all

Perfectly

Cone surface

PiR^2 + piRL

How well did you know this?

Not at all

Perfectly

Slope formula

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

How well did you know this?

Not at all

Perfectly

Complex numbers are closed under

All operations

How well did you know this?

Not at all

Perfectly

How do you find the interior angle of a polygon?

(N-2)180*/n

How well did you know this?

Not at all

Perfectly

Pyramid volume

1/3 bh

How well did you know this?

Not at all

Perfectly

Polygon sum of angles

= (n-2) 180*

How well did you know this?

Not at all

Perfectly

Ao =

How well did you know this?

Not at all

Perfectly

18% as a fraction

18/100 = 9/50

How well did you know this?

Not at all

Perfectly

Axis of symmetry

Vertical line that cuts parabola in half

How well did you know this?

Not at all

Perfectly

Surface are of cube

6s^2

How well did you know this?

Not at all

Perfectly

Volume of a cylinder

Bh or piR^2h

How well did you know this?

Not at all

Perfectly

The sum of two irrational numbers is irrational true or false

False

How well did you know this?

Not at all

Perfectly

Irrational numbers are closed under

No operations

How well did you know this?

Not at all

Perfectly

Order does not matter when performing an operation is what property

Commutative

How well did you know this?

Not at all

Perfectly

Area of triangle

1/2 bh

Convert 7 ya squared to feet squared

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

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

2. 5/40 = 17.25/x 2. 5x = 690 X= 276

Area of a circle

Pi r^2

Circumference of a circle

2 pie R

Am / An =

A m-n

A proportion is an equation which states the two ratios are equal. A/b = c/d = Ad = bc

Smile

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

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

The distance formula for a line that terminated between two points

D= sqr root of (x2-x1)^2 + (y2-y1)^2 Resembles the Pythagorean theorem

Surface are of a sphere

4piR^2

Volume of a cube

S^3

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

4/1000 = x/125,000 1000x = 500,000 X= 500

Amount of change =

Original amount times percentage change

Whole =

Part / percent

1 yard equals how many meters

.914

Volume of rectangle

Lwh

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

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

Real numbers are closed under which operations

All

Prism volume

Percent =

Part / whole

A-n =

1/An

1°F equals

9/5C + 32 degrees C

Interior angles of quadrilateral equal

360 degrees

Midpoint formula

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

Standard form

Y= ax^2 +bx + c

Rational numbers are closed except

Division.

Lateral area of a cone

Pi R L

Area of polygon =

AP/2

4.25 kilometers converted to meters

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

1 cal equals how many joules

4.19

Volume of a sphere

4/3 piR^3

Apothem

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

Am x An =

Amn

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

True order of multiplication does not change the result

Vertex formula

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

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

Original amount equals $1500 Percent change equals .45 1500 x .45 = 675 1500 - 675 = $825

Write .125 as a fraction

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

1 inch equals how many centimeters

2.54

``` Tera Giga 1,000,000,000 Mega 1,000,000 Kilo 1000 Hecto 100 Deca 10 ```

Deci .1 Centi .01 Milli.001

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

Real number

3/5 as percent

60%

Area of a parallelogram

1 ounce equals how many grams

28.35

Slope intercept form

Y=mx+b

Vertex form

Y=a(x-h)^2+k Vertex (h,k) Axis of symmetry = h

Includes positive and negative natural numbers

Integers

Area of quadrilateral equals

1 pound equals how many kilograms

.454

1.125 as percent

112.5 %

Prism SA

2lw + 2wh +2lh

8m squared to mm squared

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

Surface of a cylinder

Two pi R squared +2 pi RH

Greater than zero and has no decimal or fraction

Natural number

Cone volume

1/3bh

Axis of symmetry

X = -(b/2a)

Area of a rhombus or kite

1/2 ab A and B perpendicular lines crating triangles

Percent change

Amount of change / original amount

Natural numbers are closed under subtraction?

False