You spin the spinner below once . what is the probability that the arrow will land on an even number ?
a ( 1/8
b ( 3/8
c ( 1/4
d ( 1/2

1/2
There is 8 total numbers in this spinner, 4 of them are even numbers. 
so that would be 4/8 are even and then you simplify that to 1/2

The answer to this question is c

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.