Three diameter cuts will make 6 slices
three diameters = 18 cm
each diameter = 6 cm (pretty small pizza ! )
area= pizza pie r^2. r=3
pi 9=28.27 cm2
When x = 0 y = 5
5 = a(0^2) + b(0) + c so c = 5
when x = 1 y = 10
10 = a(1^2) + b(1) + 5 or a + b -5 = 0
when x = 2 y= 19
19 = a(4) + 2b + 5 or 4a + 2b - 14 = 0
you know 'c' and now you have two equations in red that you can use to find 'a' and 'b'
See other post above this one.....you left out the 18 cm part in your Q
Well from the other post we know she draws 4 lines. 18cm/4 lines = 4.5 cm per line
also the paper is. 4.5 cm x 4.5 cm. now can you do the 6 x 6. One? Hint: it takes 5 lines to divide into 6 spaces....
Note that TWO vertical lines and TWO horizontal lines will create a 3 x 3 grid
that is 4 lines at ? inches each = ......... total inches. You will have to know the dimensions (?)of the original square paper .... 3 x 3 grid of squares does not tell you the dimensions....
think you can do the 6x 6 one? It is a little different
(x-5)/4 = (x-4)/5 given
5 ( x-5) = 4 ( x-4) solve for the number 'x'
Assuming these terminal points are on the unit circle:
arctan 1 = 45 degrees x = sqrt 2 /2 y = sqrt 2/2
arctan -7 = 98.13 degrees x = 1 cos 98.13 y = 1 sin 98.13
Now you have two x 's and two y 's slope = (y1-y2) / (x1-x2)
570000 p / 68 mi2 = ~~ 8400 people per square mile (rounded)
log (x-4)/log (3x-10) = log 1/x
(x-4 ) = (3x-10)/x
x^2 --7x+10 = 0
(x-5)(x-2) = 0 x = 5 or 2 (throw out)
Deans average 252 points / 28 games = 9 points/game
Ruth 9.5 points/game in 18 games = 171 points