1. Prithi has two boxes. Box 1 contains 3 red, 2 silver, 4 gold, and 2 blue combs. She also has a

second box containing 1 black and I clear brush. What is the probability that Prithi selects a

red comb from box 1 and a black brush from box 2?

2 biwe combs. She also has a

13.63%

Step-by-step explanation:

In box 1, there are a total of:

3 + 2 + 4 + 2 = 11 objects, therefore the probability of drawing a comb network is:

11/3

because there are in total 3 network comb

Now, in box 2, there are only 2 objects, one of each, therefore the probability is

 1/2

The final probability would be:

11/3 * 1/2 = 0.1363

That is to say of a 13.63%

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: