PLEASE HELP Solve by completing the square. Show your reasoning

( Apparently the answer has to be a square root but that’s not what I am getting )

X^2– 12x = -20

he sells x mount because thats eqivilqant to the maz and then divided into quarters

step-by-step explanation:

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

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:

it would rotate about 180 degrees.