Monday, June 3, 2013

Get Help With Math Now

Introduction to get help with math now:

Mathematics is the study of quantity, structure, space, and change. Mathematicians seek out patterns, formulate new conjectures, and establish truth by rigorous deduction from appropriately chosen axioms and definitions.  Mathematics is used throughout the world as an essential tool in many fields, including natural science, engineering, medicine, and the social sciences.(source: From Wikipedia).

Algebra, geometry and probability are the interesting topics and these are very helpful in many real life applications. Now we are going to get help with some math problems. From this we can get clear view about how to solve the math problems easily.


Get help with some math algebra problems now:



Example problem 1:

Solve for the variable x: x2 – 4 = 0

Solution:

x2 – 4 = 0

x2 – 22 = 0

Using the formula x2 - y2 = (x + y) (x – y)

From this formula, we get

(x + 2) (x – 2) = 0

x + 2 = 0 or x – 2 = 0

x = -2 or x= 2

So, the answer is x=-2 and x=2.

Example problem 2:

Solve for the value of x: 3x + 3 = 18

Solution:

3x + 3 = 18

Now, Subtract 3 on both sides of the equation, we get

3x + 3 - 3 = 18 – 3

3x = 15

Divide by 3 on both sides of the equation, we get

3x / 3 = 15 / 3

x = 5

So, the answer is x=3.


Get help with some geometry problems now:


Example problem 3:


Length and breadth of a rectangle are 15 cm and 10 cm respectively. Find area and perimeter of the given rectangle.

Solution:

(i) Area of the rectangle = Length × Breadth

= l × b

= 15 cm. × 10 cm.

= 150 Sq. cm.

So, the area of rectangle is 150 Sq. cm.

(ii) Perimeter of the rectangle = 2 (l + B)

= 2 (l + b)

= 2 (15 + 10)

= 2 × 25 = 50 cm.

So, the perimeter of rectangle = 50 cm.

Example problem 4:

Find the volume of a wooden plank 10 cm. long, 5 cm broad and 2 cm thick.

Solution:

The volume of the plank = Length × breadth × height

= 10 × 5 × 2 cm3

= 100 cm3

So, the volume of a wooden plank is 100 cm3.

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