solve the following and express your answer in scientific notation: (5.3 x 10^4) + (1.3 x 10^3)
A. 5.4 X 10^4
B. 5.4 X 10^8
C. 6.6 X 10^7
D. 6.9 X 10^7
I say c
I think you need to look at this again.
whoops D
Yes.
To solve the given expression and express the answer in scientific notation, you need to perform the addition of the two numbers.
(5.3 x 10^4) + (1.3 x 10^3)
First, you can rewrite the numbers in standard notation:
53,000 + 1,300
Then, you can perform the addition:
53,000 + 1,300 = 54,300
Now, you have the sum in standard notation: 54,300.
To convert this answer into scientific notation, you need to express it as a number between 1 and 10, multiplied by a power of 10.
To achieve this, you can move the decimal point in 54,300 to the left until it's placed after the first digit, which is 5.4. As you move the decimal point to the left, you should increase the exponent of 10 by the same number of places you moved the decimal point.
Thus, the answer in scientific notation is: 5.4 x 10^4.
Therefore, the correct answer is A. 5.4 x 10^4.