According to the rational root theorem, which number is a potential root of f(x) = 9x8 + 9x6 – 12x + 7?
a 0
b1/7
c2
d7/3

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:

what are the