Question

help! :)

Answer 1

part a is 0
0.087

part b is 1
0.913

Answer 2

please show all your work onhow you got those answers :) @09chunga

Answer 3

Okay so....the probability of hitting the black spot is
(Area of black spot/Total Area)
Which is 2.25pi/81 =0.087 hence closer to 0


The Probability of hitting white part is
(Total Area-Black Spot)/(Total Area)
Which is (81-2.25pi)/81 = 0.913 hence closer to 1

Answer 4

isnt pi 3.14?

Answer 5

yes but it is advisable to use the main pi button on your calculator....just so you dont miss the full answer

Answer 6

ok so do i put 2.25 or 3.14? will it be the same answer?

Answer 7

no the full pie button on your calculator? which is like.. 3.141592654 at least

Answer 8

ok can you show your work for part A and B please :)

Answer 9

I did the same as Jhulian
so part a:
(πx1.5^2)/(9x9)= 0.087

part b:
(9x9)-(πx1.5^2) all divide (9x9) = 0.913

Answer 10

ok for pi did you use 2.25 or 3.14?

Answer 11

i used the π button on my calculator and if you dont have that button on your calculator, then use 3.151492654

Answer 12

sorry.. 3.141592654

Answer 13

2.25 is the radius of the circle @geny55
the area of a circle is pi*radius(squared)