I need help, the roots of y in the equation y^2-2y=-9/2 are(?)+-(?)

answer: f = 32.2m

step-by-step explanation: that is the answer

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:

the answer to 1/4x+5/3x-4=2-1/12x is x=3

hope this if needed hmu