Express the product of 4.0 x 10^-2 m and 8.1 x 10^2 m using the correct number of significant digits

The product of two expressions is 32.40

Step-by-step explanation:

Two numbers given are and

and we have to express the multiplications of these two numbers.

In this question we will multiply the numbers and add the powers of 10s.

So multiplication gives us

So we can express the product as 32.40

32 (two significant figures)

Step-by-step explanation:

We are given these two numbers written in scientific notations and we are to find their product, using the correct number of significant digits:

4.0 x 10^-2m and 8.1 x 10^2 m

Here, the exponents will cancel each other as one is negative and the other one is positive so we will be left with:

4.0 x 8.1 = 32.4

To two significant figures, it will be 32.

1/6

step-by-step explanation:

your answer is -9

step-by-step explanation: