Pick a
+3
double it
+4
halve it
take it out from the number you started with.
why is the answer always the same(the answer is always 5)

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.

Common ratio, exponential function, half-life that's all i have so

Iwould say the answer is a