The community relief fund receives a large donation of $2800. the foundation agrees to spend the money on $20 school bags, $25 sweaters, $5 books. they want to buy 200 items and send them to schools in earthquake-hit areas. they must order as many books as school bags and sweaters combined. how much of each must they buy

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:

english maybe i can ..

5.7622

step-by-step explanation:

the ten thousandths place is the 2. you round it up if, that number in whatever place is 5 or higher.