Math

Question 1

what is the distributive law?

Answer 1

this law relating the operations of multiplication and addition to remover the ( )

Question 2

what is categorical data?

Answer 2

this is a type of data that can be stored into groups or categories with the aid of names or labels

Question 3

what is discrete quantitative data?

Answer 3

this is where one that can only take specific numeric values (rather than any value in an interval), but those numeric values have a clear quantitative interpretation

Question 4

what is the difference between interval and numeric data?

Answer 4

interval data is a level of measurement that’s numerical (and you can measure the distance between points), but that doesn’t have a meaningful zero point – the zero is arbitrary moveless

Question 5

what is continuous quantitative data?

Answer 5

this is a quantitative data set representing a scale of measurement that can consist of numbers other than whole numbers, like decimals and fractions

Question 6

what is qualitative data?

Answer 6

data that is representing information and concepts that are not represented by numbers so colours

Question 7

what is Quantitative data?

Answer 7

this is data that can be counted or measured in numerical values

Question 8

pronumeral is what?

Answer 8

A letter of an alphabet or a symbol used to
represent one or more numerical values. e.g. a or b or c

Question 9

variable?

Answer 9

A pronumeral that represents more than one
numerical value. e.g. a or b or c

Question 10

expression or
algebraic expression?

Answer 10

A statement containing numbers and pronumerals
that are connected by mathematical operations but
containing no equals sign. e.g. 3a + 5

Question 11

term?

Answer 11

One of the components of an expression. e.g. The expression 3a + 5 contains two terms.

Question 12

like terms?

Answer 12

Two or more terms that contain the same
pronumerals. e.g. 3a and 5a are like terms.
3a and 5a2 are not like terms.

Question 13

constant or constant term?

Answer 13

The part of an expression without any pronumerals. e.g. In the expression 3a + 5 , the number 5 is called the constant or the constant term.

Question 14

coefficient?

Answer 14

A numeral placed before a pronumeral to indicate
that the pronumeral is multiplied by that factor. e.g. In the expression
3a + b + 5 : The coefficient of a is 3 .The coefficient of b is 1 .

Question 15

equivalent expressions?

Answer 15

Expressions that will always have the same numerical value as each other when the
pronumerals are replaced with any number. e.g. 3a + 5 and 5 + 3a

Question 16

simplify?

Answer 16

To find the simplest possible equivalent expression. e.g. 3a + 5a simplifies to 8a , 3a + 5 can’t be simplified.

Question 17

identity?

Answer 17

A statement that indicates that two expressions
will have the same numerical value when the
pronumerals are replaced with numbers. The
symbol ≡ is sometimes used in identities.
e.g. 3a + 5 = 5 + 3a or 3a + 5 ≡ 5 + 3a

Question 18

substitute?

Answer 18

To replace pronumerals with numerical values.
e.g. When a = 3, a + 5 becomes 3 + 5 .

Question 19

substitution?

Answer 19

A process in which pronumerals are replaced with
numbers. .e.g. When a = 3 , the value of a + 5 is 8