Find the value of each variable using sine and cosine. Round your answers to the nearest tenth.
b
10
489

4x and 6y

im not sure though

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:

it should be a.

hope it