Please help A) Yes, lines ℓ and k are parallel because their slopes are proportional.
B) Yes, lines ℓ and k are parallel because their slopes are equal.
C) No, lines ℓ and k are not parallel because their slopes are not equal.
D) No, lines ℓ and k are not parallel because their slopes are proportional.

i dont know sorry

step-by-step explanation:

im here

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: