Which equation shows the quadratic formula used correctly to solve 5x^2+3x-4=0 for x

A

X=[ -3 +/- sqroot((3^2)-(4*5*-4))]/ 2*5

Step-by-step explanation:

answer: 414,377,008

step-by-step explanation:

just multiply it

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: