Express the repeating decimal 2.1 repeating as a fraction.

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.

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:

df =

both have same length