Asubmarine descends at a rate of 60 feet each minute. how long will it take to descend to a depth of 660 feet below the surface?

Okay so since their aren't any choices to choose from, let's do the math the long way. Now when you're finding the rate, distance, and time. We use the this concept in math:

d = rt or

(d = distance, r = rate, and t = time)

So first we have to divide with what we already know:

660 ÷ 60 = 11

So the answer is 11!

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x=30

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: