Multiply 0.75 by 2.8×10−5
.(1 point)
Responses
2.1×10−5
2 point 1 times 10 to the negative 5 power
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
The correct response is 2.1×10−5.
To multiply 0.75 by 2.8 x 10^-5, you multiply the two numbers together.
0.75 x 2.8 x 10^-5 = 2.1 x 10^-5.
So the answer is 2.1 x 10^-5.
To multiply 0.75 by 2.8×10^(-5), you can follow these steps:
Step 1: Multiply the two numbers. 0.75 multiplied by 2.8 equals 0.021.
Step 2: Since 2.8×10^(-5) is in scientific notation, we need to account for the exponent. In this case, the exponent is -5.
Step 3: Multiply 0.021 by 10^(-5), which means moving the decimal point 5 places to the left. The result is 2.1×10^(-7).
Therefore, the correct answer is 2.1×10^(-7).