Question

Subtract 4.66×10−5−7.34×10−7

A.−2.68×10^2

B. 2.68x10^2

C.−4.5866×10^−5

D. 4.5866×10^−5

Answer 1

That means your answer is wrong

Answer 2

To subtract the given numbers in scientific notation, we first need to ensure that they have the same exponent.

In this case, we can rewrite 4.66×10^−5 as 4.66×10^−5 × 10^2 ÷ 10^2 = 4.66×10^−5 × 10^2/10^2 = 4.66×10^−3

Subtracting 4.66×10^−3 from 7.34×10^−7, we get:

7.34×10^−7 - 4.66×10^−3 = 7.34×10^−7 - 4.66×10^−3

= -4.6526×10^−3

So, the answer is "-4.6526×10^−3"

However, none of the given options match this answer.

Answer 3

Apologies for the mistake. Let's subtract the numbers correctly:

4.66 × 10^(-5) - 7.34 × 10^(-7)

To subtract these numbers, we need to have the same exponent. Let's rewrite 7.34 × 10^(-7) as 0.734 × 10^(-6) to have the same exponent:

4.66 × 10^(-5) - 0.734 × 10^(-6)

Now, we can perform the subtraction:

4.66 × 10^(-5) - 0.734 × 10^(-6) = 4.66 × 10^(-5) - 0.00734 × 10^(-5)

= (4.66 - 0.00734) × 10^(-5)

= 4.65266 × 10^(-5)

So, the correct answer is 4.65266 × 10^(-5), which corresponds to option D.