Abox contains 150 black pens and 50 red pens. jose said the sum of the probability that a randomly selected pen will not be black and the probability that the pen will not be red is 1. explain whether you agree.

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:

answer: 1+1

step-by-step explanation: 1+1 is at least 2