Hello if you solve this you get 20 points ~wow~ its 16 + 9 +23 - 19 +1 - 39 = ? Im just bored so-

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:

b. f(x) = –√x + 3this is the correct answer