A pet store owner, Brian, needs to determine how much food he needs to feed the animals. Brian knows that he needs to order the same amount of bird food and hamster food. He needs four times as much dog food as bird food and he needs half the amount of cat food as dog food. If Brian orders 600 packages of animal food, how much dog food does he buy? Let b represent the number of packages of bird food Brian purchased from the pet store

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the answer is 13/48

step-by-step explanation:

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: