Question

solve with due regard to significant figures
6.30×10^-3+4.2×10^-2​

Answer 1

Given $6.30 \times 10^{-3}+4.2 \times 10^{-2}$

We need to simplify the given expression

What is the expression?

A mixture of numbers, variables, and functions is called an expression (such as addition, subtraction, multiplication or division etc.) You can think of expressions as being comparable to phrases.

Now

$6.30 \times 10^{-3}+4.2 \times 10^{-2}\\=0.630 \times 10^{-2}+4.2 \times 10^{-2}\\=4.83 \times 10^{-2}\\=0.0483$

The required solution is $0.0483$ .

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Answer 2

Answer:

What is Expression?

Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression or algebraic expression.

Solution:

$6.3 \times {10}^{ - 3} + 4.2 \times {10}^{ - 2} \\ = 0.630 \times {10}^{ - 2} + 4.2 \times {10}^{ - 2} \\ = 4.83 = {10}^{ - 2} \\ = 0.0483$

The answer is 0.0483 .

To know more about the topic click on the link below:

Link: https://brainly.in/question/16766451

Code: #SPJ2