If the discriminant for a quadratic equation is 47, which of the following would be the number and type of root/s?
A. 1 real number
B. 2 imaginary
C. 2 real
D. 47

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:

idk

step-by-step explanation: