Acopy machine makes 32 copies per minute. how many copies does it make in 4 minutes and 30 seconds?

It makes 144 copies in 4 minutes and 30 seconds

It is 94.7% that uses the metric system

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.