A store sells notepads in packages of 24 (x) and packages of 6 (y). The organizers of a conference needs to prepare at least 200 notepads for the event. Write an inequality to represent the situation. a \large 24x+6y\le200 b \large 24x+6y<200 c \large 24x+6y>200 d \large 24x+6y\ge200

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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: