A. Find the value of a. b. Find the value of the marked angles.

Step-by-step explanation:

We can see that they are vertically opposite angles so they are equal. then

6a + 10° = 3a + 55°

6a - 3a = 55° - 10°

3a = 45°

Therefore a = 15°

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: