Two people are sitting on a seesaw that is 9 ft long, One person weighs 120 lb. The second person weighs 150 lb. How far from the 120 pound person should the fulcrum be placed so that
the seesaw balances?

5 feet

Step-by-step explanation:

because the see saw doesn't have over weight

answer: median

step-by-step explanation:

the median is the middle value when a data set is ordered from least to greatest

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: