Answer:
Step-by-step explanation:
<span>3 of the 20 toothbrushes are defective, so the initial probability of selecting a defective toothbrush on the first try is 3/20. After that, there will be 2 defective toothbrushes in the remaining 19, so the probability of selecting one of those on the 2nd try will be 2/19. To get the probability of those two events happening sequentially, we multiply the two probabilities. Thus (3/20)*(2/19) = 6/380 = 0.0157, or about 1.6%.</span>
The answer is 1188.
Hope it helped :)
You just add 16. The answer is 32.<span />
Answer:
7.2*10^3.
7,200 in scientific notation, is 7.2*10^3
