This test is timed
what value is a discontinuity of x2+2x+3/x2-x-12
a) x= -1
b) x= -2
c) x= -3
d) x= -4

quit

step-by-step explanation:

what level of math? also i don't need to be paid if i can you.

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: