Melody

I have found no evidence that any of your images are blocked.

Please provide a link to a post where the image in blocked.

I could see one but not both. Maybe other people like Cal could not see either one. :/

I have 54 coins in my pocket; some of them are quarters and the rest are nickels. In total, the coins are worth $6.10. How many of each coin do I have?

d+n=54

10d+5n=610

now solve simultaneously.  

The period is the distance from from one crest (top) to the next crest ;)

Here is your graph.

If you know what those terms mean then the answers are easy.

If you do not then google them.

If you want you can post your answers and I (or someone else)  will comment on their accuracy.

Please no one else finish this question.

Substitute y for cosx and then solve as a quadratic.

You are doing lots of great research Cal.

Keep it up!

Thanks Cal, I am very glad that you found and posted the original post.

Attn Guest:

Am I right in thinking that you are mathtoo?   (the original poster)

Why do you think the answer is wrong and why didn't you say so on the original post?

Here is the original post as a link.

You are doing great research here Cal.   

The only small suggestion I'd like to make is that you use the link button in the ribbon so that people can hyperlink straight to the addresses that you are giving.

Do you think it is wise to vote me down AltShaka?  

I was just pointing out the obvious.