Multiply 0.75 by 2.8×10−5
.(1 point)
Responses
2.1×10−6
2 point 1 times 10 to the negative 6 power
2.1×10−7
2 point 1 times 10 to the negative 7 power
2.1×10−4
2 point 1 times 10 to the negative 4 power
2.1×10−5
2.1×10−5
To multiply 0.75 by 2.8×10^(-5), you need to multiply the decimal values and the powers of 10 separately.
First, multiply the decimal values: 0.75 * 2.8 = 2.1.
Next, multiply the powers of 10: 10^(-5) * 10^(-5) = 10^(-10).
Combine the result from the decimal values (2.1) and the result from the powers of 10 (10^(-10)):
2.1 * 10^(-10).
Therefore, the answer is 2.1×10^(-10).
To multiply 0.75 by 2.8 × 10^(-5), you can follow these steps:
Step 1: Multiply the decimal numbers:
0.75 multiplied by 2.8 equals 2.1.
Step 2: Multiply the powers of 10:
10^0 multiplied by 10^(-5) equals 10^(-5).
Step 3: Multiply the results from step 1 and step 2:
2.1 multiplied by 10^(-5) equals 2.1 × 10^(-5).
So, the correct answer is 2.1 × 10^(-5).