It has been said that newspaper are disappearing, replaced by various electronic media. in 2001, newspapers circulation (number of copies distributed in a day) was about 63 million. in 2009, this circulation dropped 45 million

what are the statments

step-by-step explanation:

thats not a system of equations, that is a 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: