A computer program randomly picks from the whole numbers 0–9 and lowercase letters, one at a time, to create a password. What is the probability that the first character the program uses is a lowercase letter?

Enter your answer as a decimal rounded to the nearest hundredth in the box.

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:

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3xy cannot be combined with the others

2x, -5x and x are like terms