Is (-3,2,5) a solution to the following system of equations? * x – 3y + z = 21
3x + 2y – 5z = -30
2x - 5y + 2z = -6

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: