What is the factorization of 81a6 - 100?
(9a2 - 10)(9a3 + 10)
(922 - 10)(9a3 - 10)
(923 – 16)(923 + 10)
(923 - 10)(923 - 10)

step-by-step explanation:

answer: what in the world is this

step-by-step explanation:

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: