This expression involves two numbers written in scientific notation.

4.2×1072.1×103

Which is the simplified form of the expression?

Responses

2.0×1037

2 point 0 times 10 raised to the 3 sevenths power

2.0×104

2 point 0 times 10 to the 4th power

2.0×1073

2 point 0 times 10 raised to the 7 thirds power

2.0×1010

The simplified form of the expression is 2.0×1010.

To simplify the expression 4.2x10^7 * 2.1x10^3, you need to multiply the coefficients and add the exponents.

4.2 * 2.1 = 8.82

10^7 * 10^3 = 10^(7+3) = 10^10

So, the simplified form of the expression is 8.82x10^10.

Therefore, the correct response is:

2.0×1010.

To simplify the expression, you need to multiply the numbers and combine the powers of 10.

The expression 4.2×10^7 multiplied by 2.1×10^3 can be simplified by multiplying the coefficients (4.2 and 2.1) and adding the exponents of 10 (7 and 3).

Multiplying the coefficients, 4.2 and 2.1, gives us 8.82.

Adding the exponents, 7 and 3, gives us 10.

So, the simplified form of the expression is 8.82×10^10.