The perimeter of a rectangle is 24 inches. Find the dimensions if it’s length is 3 inches greater than its width?

Length: 9 inches

Width: 3 inches

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:

they would have to work 32 hours.