Determine the number of solutions for the equation below. 4x+6=4x+6

a. infinitely many
b. 2
c. 1
d. 0

The answer is A. Infinitely many.

Since the equations are the exact same, any solution would be vaild.

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: