Which list shows the values in order from greatest to least? A. 1–71, 1-21,161,151
O B. 161,151,1–21, 1–71
C. 161, 151, 1–71,1-21
D. 1–71,161,151,1-22

1 is b and 2 is d

step-by-step explanation:

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

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:

its totaly b

your welcome btw