Answer:
the first one is -4 2. is -2 3. is -70, 4. 20 5. 6 6. -45 7. 35 8. -20
Step-by-step explanation:
Answer:
The width is 14ft
Step-by-step explanation:
Given
Required
Determine the width
To do this, we assume that the fence is a rectangle
So, we use the following formula.
Where:
So, we have:
Divide both sides by 2
Solve for Width
Answer: 1020 ways
Step-by-step explanation:
Let C= comedy
Let M= Mystery
Number of movies(comedy) = 10
Number of movies (mystery) = 10
The total number of movies from which selection is to be made is 10 + 10
= 20
We want to pick 3 movies from 10 comedies and 10 mysteries with at least one mystery.
The selection will be from;
Unconditional selection - (0 mysteries)
=unconditional selection - ( all comedy included)
= 20C3 - 10C3 For combination, [nCr = n! /(n-r) r! ]
= [20!/(20-3)!3!] - [10!/(10-3)!3!
= (6840/6) - (720/6)
= 1140 - 120
= 1020 ways
F
(
n
)
=
87 That’s Standard form
After 1 year, there will be 3% more money in it. So, multiply 750 by 1.03 to get 772.5
There will be $772.50 in the account in a year.
