For what value of x is the rational expression below equal to zero? X-4
X5
A. -6
B. -4
C. 6
D. 4

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:

y/x of point b= y/x of point a

step-by-step explanation:

(i got the same question, this was the correct answer.)

kaahe btau