Why is my calculator calculating incorrectly?

Hello everyone, I'm currently doing statistics for university. We have frequency tables with classes. A class is [15, 25], and the relative frequency is 2/29. My calculation is relative frequency ÷ class width, or 2/29 ÷ 10. The result should be 0.007. However, I'm getting something really strange. My result is 1/145, or 6.896… ×…

Throw physics?

Hello, can someone help me with this problem? I was absent from physics class due to illness. It has to do with falling and throwing. I don't know exactly how to solve it, nor how to enter it into this special Casio calculator (fx-cp400) and get a table with the values. It would be really…