1. ### Energy question

Thanks that is what I got but the solutions say it’s 20 minutes 🤷‍♂️

3. ### Financial maths into question

John bought a TV for \$3250. He paid a 10% deposit and made monthly repayments of \$96 for 3 years. What annual flat rate of interest was John charged?
4. ### Financial maths question please show all working

John bought a TV for \$3250. He paid a 10% deposit and made monthly repayments of \$96 for 3 years. What annual flat rate of interest was John charged?

Thank you so much. Can you help with these two questions? https://imgur.com/gallery/ppTlaw5
6. ### Area of a region

Draw a sketch of the curve f (x) = 3 cos x and the curve g(x) = sin 2x in the domain 0 less than and equal to x less than and equal to pi. and then find the area of the region bounded by the curve f(x) = 3 cos x and the curve g (x) = sin 2x in the given domain.

A percussionist is experimenting with designs for a xylophone. It is to be symmterical in shape. The shortest woden bar is to be 10cm long and the consecutive bars will differ in length by b cm. The total length of all the wooden bars is S cm. Let the number of wooden bars be 2n+1. i)...

https://imgur.com/gallery/92UgS1c

https://imgur.com/gallery/onEODK5
10. ### Past trial hsc papers

Anyone willing to choose a question or as many as they want and write the solution so I can that my working out is correct. https://imgur.com/gallery/KbClGdu Thanks

Okay I figured it out. Shadia continues for 26/36