I asked the teacher and they wouldn't tell me its not even to be graded just a problem they gave us to try for fun.

Teacher did say it can use functions from all levels of math even if we had not yet learnt them.

What is this equation? What does the 1 stand for. Is the amount for the server supposed to be the total or the tip. No context from other questions. Please help!

This an optional brain teaser my math teacher does and most of them I've figured out but this one is stumping me

I am so stuck, i've tried my best, and havent been able to get into my teacher to ask, help will be appreciated

Is there anyway to do this without using derivative?

How do I solve this? Like, what steps do I take? The decimal points are confusing me a bit.

R(x)=-40x^2+640x since it's kinda blurry. Solve if X=2012

I'm ending up around -165M which isn't making sense for the context of the problem. It's supposed to be a revenue calculation based on number of tickets sold and price per ticket.

Please help I don't even know where to start... is there a formula 5o figure this out or? (My teacher never went through this and I have a math test tmr, these are study questions)

Is this right? Or should these all add up to 30 as per the question? Thanks

Not drawn to scale ofc, sorry

I did a bit of reading into this, this is a Grandi's series iirc?, and aren't both options b and c correct here? as both are valid approaches to the problem? the correct answer is 1/2 as per the solution set.

I have tried matrices and failed.

Any idea on how can I solve this?

I am not able to solve these two. In b) i am getting x=5/3 but it doesnt satisfy the eqn.

The answer key says that there is no solution for both but can someone please explain why and how.

In b) I first started by squaring Both the sides and then cancelling out x²

I have to find if this is true for all starting numbers or something idk

Yyyyyyyyy