A model car is to be an exact replica of the original, but at the size. If the actual car is 240 cm long, how many centimeters long should the
model be?

okay wait before i answer, is this for your points on a graph?

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.

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: