What is 7 squared in standard form
The correct answer and explanation is:
7 squared is 49.
To explain, squaring a number means multiplying the number by itself. In this case, 7 squared is written as 727^2, which equals 7×77 \times 7. This gives 49.
Standard form, in mathematics, refers to expressing a number as a product of a number (typically between 1 and 10) and a power of 10. However, standard form can also refer to representing numbers in scientific notation, especially for very large or very small numbers. Since 49 is a relatively small number, it is not typically expressed in the more common scientific notation, but if it were, it would be written as 4.9×1014.9 \times 10^1.
In terms of the basic mathematical operation, squaring is a simple exponentiation. Exponentiation is one of the core arithmetic operations, and squaring is a specific case where the exponent is 2. The general rule for exponentiation is that the base number is multiplied by itself as many times as the exponent indicates. For example, ana^n means multiplying the base aa by itself nn times.
For small numbers, squaring can be done easily through direct multiplication, but for larger numbers, it can be done using specific methods like long multiplication or a calculator. The concept of squaring is widely used in algebra, geometry, physics, and many other fields, as it has applications in calculating areas of squares, distances in certain contexts, and in many formulas related to natural phenomena.