find 0.078 - (5.2 times 10^-3). express the answer in scientific notation
0.078 - (5.2 × 10^-3) can be simplified to 0.078 - 0.0052.
Subtracting these two numbers, we get 0.0728.
To express this answer in scientific notation, we can write 0.0728 as 7.28 × 10^-2.
To solve the expression 0.078 - (5.2 × 10^-3) and express the answer in scientific notation, follow these steps:
1. First, calculate the subtraction: 0.078 - (5.2 × 10^-3) = 0.078 - 0.0052.
- 0.078 - 0.0052 = 0.0728
2. Now, the result is 0.0728. To express it in scientific notation:
- Move the decimal point to the right so that only one digit is to the left of the decimal point, giving us 7.28.
- Count the number of places you moved the decimal point to the right. In this case, it's 2 places.
- Write the result as 7.28 × 10^2.
Therefore, the answer to the expression 0.078 - (5.2 × 10^-3) in scientific notation is 7.28 × 10^2.
To find 0.078 - (5.2 times 10^-3) and express the answer in scientific notation, follow these steps:
Step 1: Convert 0.078 to scientific notation.
0.078 can be written as 7.8 times 10^-2.
Step 2: Subtract the two numbers.
7.8 times 10^-2 - 5.2 times 10^-3 = (7.8 - 5.2) times 10^-2.
Step 3: Simplify the subtraction.
7.8 - 5.2 = 2.6.
Step 4: Express the answer in scientific notation.
2.6 times 10^-2.
Therefore, 0.078 - (5.2 times 10^-3) expressed in scientific notation is 2.6 times 10^-2.