# Search results

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

The solution in the book is 1/2??

1) there are two white and three black discs in a bag. two players A and B are playing a game in which they draw a disc from the bag and then replace it. player A must draw a white disc to win and player b must draw a black disx. player a goes first. find the probability that A) player b wins...
14. ### Would anyone check my solutions to a few probability questions

Are the others correct?

Shadia has invented a game for one person. she throws two dice repeatedly until the sum of the two numbers shown is either six or eight. if the sum is six, she wins. if the sum is eight, she loses. if the sum is any other number, she continues to throw until the sum is six or eight. calculate...
16. ### Would anyone check my solutions to a few probability questions

https://imgur.com/gallery/w3DX7QV Please can you check through my solutions and see what mistakes I’m making. I must admit 17b I had no clue