A group of five pianists includes 2 boys and 3 girls. An instructor randomly selects one of the pianists to play the first part of a duet and a different pianist to play the second part of a duet. Use a sample space to determine whether randomly selecting a boy first and randomly selecting a girl second are independent events.

Step-by-step explanation:

h I dont know I believe it's 55

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: