Formula for combinations:
(n!)/(r!(n-r)!)
For you, this is:
10!/(5!(10-5)!) = 10!/5!5! = (10•9•8•7•6•5•4•3•2)/(5•4•3•2)(5•4•3•2) = (10•9•8•7•6)/(5•4•3•2) = 30240/120=252 different ways.
In 7 hours 644 newpapers
in one hour it is 644/7= 92
in 9 hours-> 92x9 =828 newspapers
Answer:
Step-by-step explanation:
To find the length of an isosceles triangle, you know that the angles of the triangle are 45-45-90, so let's use that triangle theorem.
Therefore, the length of the hypotenuse (BD) is 
, and x is equal to 8 (length of BC).
x=8
Therefore, would be the length of side BD.
Answer:
Both are rational numbers
Both are Natural numbers
Both numbers are at the same distance of 1000
|1000-1003| = |997-1000|
Step-by-step explanation:
Both numbers have several things in common.
Both are rational numbers since they can be written as whole number fractions:
1003 = 1003/1
997 = 997/1
Both are Natural numbers, since they are non-negative integers.
Also both numbers are at the same distance of 1000.
| 997 -1000 | = 3
| 1000-1003 | = 3
