The 9 is in the thousandths place
For the first digit youhave 10 choices. Forbthe second digit you have 10 choices. For the third digit you have 10 choices. By the fundamental counting principle the answer is 10×10×10=1000 ways to form a three digit number.
speed of the plane in still air is 76 m/s and speed of the wind is 28 m/s .
<u>Step-by-step explanation:</u>
Here we have , A plane traveled 1248 miles to Ft. Worth and back. The trip there was with the wind. It took 12 hours. The trip back was into the wind. The trip back took 24 hours. We need to find What is the speed of the plane in still air? What is the speed of the wind? Let's find out :
<u>For Going trip :</u>
Let speed of plane be u , and wind be v so : Speed = ( Distance ) / ( time )
⇒ 
⇒
...........(1)
<u>For Returning Trip :</u>
⇒ 
⇒
...........(2)
Adding both equations we get :
⇒ 
⇒ 
⇒ 
Putting this value in equation (1) we get :
⇒ 
⇒
Therefore , speed of the plane in still air is 76 m/s and speed of the wind is 28 m/s .
Answer: 3/28 of the book.
Step-by-step explanation: you simply take the said fraction that they give you, and divide the whole thing by 8. An 8th of 6/7 is 3/28!
If we ask 500 individuals whether they have credit card and if we consider the probability of people having a credit card being normally distributed, then we assume that, considering 30% do not have a credit card, everyone who is within 1SD of the mean will have a credit card, while the remaining ~15% on either tail of the distribution do not.