Subtract – 4 from – 10.
Solution :
=– 10 – (– 4)
= – 10 + (additive inverse of – 4)
= – 10 + 4
= – 6 (see addition of two integers)
2)Find the product of (a) (+ 6) × (– 5) (b) (– 12) × (+ 12) (c) (– 15) × (– 4)
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Solution:
Side of the square, a = 7.5 cm
Area of the square, A = a2
= a × a
= 7.5 × 7.5
= 56.25cm2
Perimeter of the square, P = 4a
= 4 × 7.5 cm
= 30 cm
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Prime number chart
If we interchange the sets, the set of benches becomes the domain set and the set of students becomes co-domain set. Here at least one bench consists of more than one student.
This is against the principle of function i.e. each element in the domain should have associated with only one element in the co-domain. Thus if we interchange the sets, it is not possible to define a function.
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Substitution integration
The equation to find the area of a circle is 
The equation to find the area of a circle using diameter is
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(–7x2 + 12) – (8 – x2)
Solution:Step 1:Open the parentheses.
( –7x2 + 12) – (8 – x2) = –7x2 + 12 – 8 + x2.
Step 2:Group like terms.
= (–7x2 + x2) + (12 – 8)
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Factors of 45
= –6x2 + 4
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Factoring means that we find out greatest common factor from the expression and factor out this.
There are four special rules of factoring. They are following,
1. Factor a difference square
2. Factor a perfect square trinomial
3. Factor a difference of cubes
4. Factor a sum of cubes.
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There are three types of fractions,
1. Proper fraction
2. Improper fraction
3. Mixed fraction
Proper fraction:
A fraction is of the form a/b, where b > a
A fraction is of the form a/b, where a > b
Mixed fraction:
A fraction is of the form a . Here a = Quotient.
b = Remainder
c = Divisor.
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let us learn about pre algebra answers
The part of pre algebra answers called elementary algebras is often part of the curriculum in middle school education and introduces the concept of variables representing numbers. Statements based on this variable are the manipulated using the rules of operations that apply to numbers, such as addition. This can be done for a variety of the reasons, including equation solving. pre algebra is much broader than the elementary algebra and studies what happens when different rules of operations are used and when operations are devised for things other than numbers.
In math, simple math pie chart is in the shape of circular. The circular can be separated into sectors according to their problem. Each sector may be equal or unequal. The pie-chart is able to do effectual method of displaying information in several cases. The pie-chart is also classified as four types like area pie chart, multilevel pie-chart, exploded pie-chart and three dimensional pie-charts. The pie chart is used to show the relationship between percents with 100% being the entire circle (pie). A pictorial graph is in the shape of a circle, which has segments representing related proportions
* In math, there are various signs exists.One of the important math signs is pie.
* Pie can be defined as an arbitrarily constant whose value is equal to the circumference ratio of any circle to its diameter
* Pie is almost equal to 3.141593 in decimal notation.
* Pie is a dimensionless number that is just a number without physical units.
* The symbol for pie in math can be denoted as π
In our next blog we shall learn about pay grade scale I hope the above explanation was useful.Keep reading and leave your
Math 216: Statistical Research Methods: The role of statistics in scientific research. Descriptive statistics for univariate and joint distributions; correlation and regression. Statistical inference: sampling distributions, t test, and analysis of variance. Computer analysis of data
In mathematics, especially in elementary arithmetic, division (÷) is the arithmetic operation that is the inverse of multiplication.
Specifically, if c time’s b equals a, written:
c x b = a
Where b is not zero, then a divided by b equals c, written:
a/b= c.
In the above expression, a is called the dividend
Some types are there to preparation of matrices,
Column matrix: A matrix is said to be column matrix if it has only one column.
Row matrix: A matrix is said to be row matrix, if it has only one row.
Square matrix: A matrix in which the quantity of rows are equal to the quantity of columns.
Diagonal matrix: Diagonal matrix is said to be scalar matrix while the diagonal elements are equal. Square matrix B = [bij] m × m is said to be a diagonal matrix if all its non diagonal elements are zero, that is a matrix B = [bij] m × m is said to be a diagonal matrix if bij = 0, when i ≠ j.
Scalar matrix: Diagonal matrix is said to be a scalar matrix if its diagonal elements are equal, that is, a square matrix B = [bij] n × n is said to be a scalar matrix if
bij = 0, when i ≠ j
bij = k, when i = j, for some invariable k.
Identity matrix: Square matrix in which elements in the diagonal are all 1 and remaining numbers are all zero is called an identity matrix. Ssquare matrix A = [aij] n × n is an
Identity matrix, if aij = 1 if i=j
aij =0 if I # j.
Zero matrix: A matrix is said to be zero matrix or null matrix if all its elements are zero.
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