What is the solution of the system? -2x-5y= -1
4x-y=13

A.(-1,3)
B.(3, -1)
C.(-3,1)
D.(1, -3)

c.35

step-by-step explanation:

8+13=21

21+8=29

29+6=35

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a

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: