500000 = A( 1 + .05)^ 10 divide both sides by ( 1 + .05)^10
500000/ ( 1 + .05)^10 = A ≈ $306956.63
Perfect squares = 1, 4, 9 , 16, 25 , 36, 49, 64, 81 ,100
Probability = 10 / 100 = 1 / 10
Not familiar with this notation.....however....if it's supposed to be
( n ) we have
n - 2
n!
_________________ =
(n - (n - 2)! (n - 2)!
___________ =
2! ( n - 2)!
n ( n - 1)
________
2
AELN suggests a good method
If you draw it out......we will have a side = 8 opposite the 30° angle
The altitude will be opposite the 60° angle = 8√3
So......the area =
(1/2) base (height) =
(1/2) (16) ( 8√3) =
64√3
I don't know.....yours is pretty good, too, AELN !!!!
I gave you a point !!!!
A regular polygon has all sides the same......so.....this is an equilateral triangle
The area =
(1/2) (16) (16)√3 /2
(√3/4) * 16^2 =
(√3) ( 64) ≈
110.9 ft^2
We have the set ...... ( R, R , R ,R, D, D, D , D , D , D)
We can choose any 4 of 10 positions in the set to place the R or 6 of 10 postions in the set to place the D
We can either use C(10, 4) or C(10,6) = 210 paths
Words with one letter = 5
Words with two letters = 5^2 = 25
Words with 3 letters = 5^3 = 125
Add these
First one
10 - [ 2 (2.78) + 2.85] = 10 - [ 8.41 ] = 1.59 pounds change
Second one (easy)
people in boat * number of boats = total people
6y
OK....no prob
