What is the result of 7.3 x 7.3?

What is the result of 7.3 x 7.3?

• A. 52.29
• B. 53.29
• C. 54.29
• D. 55.29

Answer: (B)

To find the result of 7.3 multiplied by 7.3, it can be helpful to break it down in a way that makes the multiplication easier to handle. First, consider that multiplying a number by itself is the same as squaring that number. So, we are looking for \(7.3^2\). To perform the calculation, you can set it up in a way that lays out the multiplication in a more manageable form: \[ 7.3 \times 7.3 = (7 + 0.3)(7 + 0.3) \] Using the formula \((a+b)^2 = a^2 + 2ab + b^2\), where \(a = 7\) and \(b = 0.3\): - First, calculate \(a^2\), which is \(7^2 = 49\). - Next, calculate \(b^2\), which is \(0.3^2 = 0.09\). - Now, calculate \(2ab\), which is \(2 \times 7 \times 0.3 = 4.2\). Adding these results together gives: \[ 49 + 4.

To find the result of 7.3 multiplied by 7.3, it can be helpful to break it down in a way that makes the multiplication easier to handle.

First, consider that multiplying a number by itself is the same as squaring that number. So, we are looking for (7.3^2).

To perform the calculation, you can set it up in a way that lays out the multiplication in a more manageable form:

[

7.3 \times 7.3 = (7 + 0.3)(7 + 0.3)

]

Using the formula ((a+b)^2 = a^2 + 2ab + b^2), where (a = 7) and (b = 0.3):

• First, calculate (a^2), which is (7^2 = 49).

• Next, calculate (b^2), which is (0.3^2 = 0.09).

• Now, calculate (2ab), which is (2 \times 7 \times 0.3 = 4.2).

Adding these results together gives:

[

49 + 4.