What is the answer too 2 7/10 - 4/5 ?

0.6

Step-by-step explanation:

Step 1:

The given expression is expressed in BODMAS as

BODMAS- Brackets Orders Division Multiplication Addition Subtraction

Step 2:

First simplify the terms inside the Brackets as follows

Then simplify the First Bracket terms into smaller parts for simplification

Step 3:

The final step is subtracting the terms in  order to get the required solution

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: