If the first equation is multiplied by 3 and then the equations are added, the result is . 3 x + y = 3
x - 3 y = -2
A) 10x=11
b) 10x=7
c) 8x =7

d. is the correct answer

step-by-step explanation:

they will manufacture 8496 cars

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: